I. Introduction
An unusually high water bill can be alarming, especially when the consumer’s household or business usage has not changed. In the Philippines, excessive water bills may arise from many causes: actual increased consumption, hidden leaks, defective meters, estimated billing, wrong meter reading, billing system errors, illegal tapping, mixed-up accounts, or delayed adjustments from prior billing periods.
A water consumer is not helpless. A customer may dispute an excessive bill, request a meter reading, demand verification, ask for meter testing, seek a billing adjustment, and escalate the complaint to the proper regulatory or dispute-resolution body when the water service provider fails to act fairly.
This article discusses the legal and practical remedies available to Philippine consumers who receive excessive water bills and want to demand a proper meter reading.
II. Water Service Providers in the Philippines
Water service may be supplied by different entities depending on location. These include:
Private concessionaires Common in certain urban areas, especially where water services are operated under concession agreements.
Water districts Government-owned and controlled corporations created to provide local water services.
Local government-operated water systems Some cities, municipalities, or barangays operate their own water supply systems.
Subdivision, condominium, or homeowners’ association water systems In some developments, water charges are collected through the developer, condominium corporation, or homeowners’ association.
Bulk water providers and private suppliers Some industrial, commercial, or special-use customers may be served under separate supply arrangements.
The proper complaint procedure may depend on the type of provider, but the basic consumer principles are similar: the bill must be based on a fair, accurate, and verifiable basis.
III. Nature of a Water Bill
A water bill is a demand for payment based on measured or assessed consumption and applicable charges.
It may include:
- basic water charge;
- environmental charge;
- sewerage charge;
- maintenance service charge;
- meter service charge;
- franchise or regulatory charges, if applicable;
- arrears from prior periods;
- penalties or surcharges;
- reconnection charges;
- installation or repair charges;
- value-added tax or other taxes, if applicable;
- adjustments or credits;
- miscellaneous fees.
A consumer disputing a water bill should determine whether the excessive amount comes from actual consumption, arrears, penalties, service charges, or unexplained adjustments.
IV. Common Causes of Excessive Water Bills
1. Actual increase in consumption
The provider may claim that the bill reflects actual use. This may occur when there are more occupants, longer use periods, additional appliances, water storage refilling, construction work, gardening, laundry, business use, or guests.
2. Leak after the meter
A common cause is a hidden leak within the consumer’s plumbing system. If the leak is after the water meter, the provider may argue that the water passed through the meter and is billable.
Leaks may occur in:
- toilet tanks;
- underground pipes;
- faucets;
- valves;
- water tanks;
- pressure pumps;
- concealed pipes;
- garden lines;
- bidets or fixtures;
- float valves.
3. Defective or inaccurate meter
A water meter may be defective, stuck, unusually fast, damaged, old, tampered with, or improperly installed. A consumer may request meter testing if the reading appears abnormal.
4. Wrong meter reading
The meter reader may have misread the digits, read the wrong meter, reversed digits, entered an incorrect number, or failed to consider the prior reading correctly.
5. Estimated billing
If the provider could not access the meter, the bill may be estimated. Estimated billing can later result in adjustments when an actual reading is obtained.
6. Delayed billing adjustment
A sudden spike may reflect accumulated consumption from previous periods that were underbilled or estimated.
7. Mixed-up account or wrong meter assignment
A consumer may be billed for another unit, another house, or another meter, especially in subdivisions, compounds, condominiums, or properties with multiple meters.
8. Illegal connection or unauthorized tapping
An illegal connection may cause consumption to register through the consumer’s meter. This should be investigated immediately.
9. Billing system or encoding error
Even if the physical meter is accurate, the billing record may contain a clerical or system error.
V. Basic Legal Principles
Several principles are important in disputing an excessive water bill.
A. The bill must have a reasonable basis
A utility provider should be able to explain the basis of its charges. A consumer has the right to ask how the amount was computed and what reading was used.
B. The consumer may demand verification
A consumer may request:
- actual meter reading;
- meter reading history;
- meter inspection;
- meter test;
- billing breakdown;
- explanation of adjustments;
- proof of arrears;
- consumption comparison.
C. The consumer should pay undisputed amounts when possible
To avoid disconnection while preserving the dispute, a consumer may pay the undisputed portion or pay under protest, depending on the provider’s rules.
D. Disconnection should not be arbitrary
Water service is essential. A provider must follow applicable rules, notice requirements, and due process before disconnection.
E. The provider and consumer both have duties
The provider must maintain accurate billing and metering. The consumer must allow meter access, protect the meter from tampering, report leaks, and pay lawful charges.
VI. First Step: Examine the Bill Carefully
Before filing a dispute, the consumer should review the bill line by line.
Check the following:
- account name;
- service address;
- meter number;
- billing period;
- previous reading;
- present reading;
- consumption in cubic meters;
- rate classification;
- arrears;
- penalties;
- adjustments;
- due date;
- disconnection notice;
- taxes and other charges;
- comparison with prior bills.
The most important entries are the previous reading, present reading, and consumption. A sudden increase in cubic meters usually explains the high amount, but the question is whether the reading is correct.
VII. Compare Prior Bills
The consumer should gather at least six to twelve months of prior bills, if available.
Compare:
- average monthly consumption;
- seasonal changes;
- number of occupants;
- rate classification;
- previous readings;
- present readings;
- unexplained adjustments;
- estimated readings;
- arrears;
- penalties.
A strong dispute usually shows that the current bill is inconsistent with historical usage.
Example:
If a household normally consumes 15 to 20 cubic meters per month and suddenly receives a bill for 120 cubic meters without any change in usage, the consumer has a reasonable basis to demand verification.
VIII. Read the Meter Personally
The consumer should inspect and photograph the water meter as soon as the excessive bill is received.
A. What to photograph
Take clear photos showing:
- the meter face;
- the meter number;
- the meter location;
- the current reading;
- any visible damage;
- any leaks around the meter;
- the date and time, if possible.
B. Compare the actual meter with the bill
Check whether:
- the meter number matches the bill;
- the present reading on the bill is close to the actual meter reading;
- the billed consumption is plausible;
- the meter reading appears lower than the billed reading;
- the meter is still running when all fixtures are closed.
If the actual meter reading is lower than the billed reading, there may be a reading or billing error.
IX. Conduct a Simple Leak Test
A consumer may perform a basic leak test before filing or while pursuing the dispute.
Steps
- Turn off all faucets and water-using appliances.
- Make sure no one is using water.
- Check the meter.
- Observe whether the leak indicator, dial, or numbers continue moving.
- Wait 15 to 30 minutes.
- Check again.
If the meter moves while no water is being used, there may be a leak after the meter.
Legal significance
If the leak is within the consumer’s private plumbing, the provider may claim the consumption is chargeable because it passed through the meter. However, the consumer may still request consideration, adjustment, installment payment, or leak-related relief if allowed by provider policy.
X. Demand an Actual Meter Reading
If the bill appears excessive, the consumer should promptly demand an actual meter reading.
The demand should ask the provider to:
- send an authorized meter reader or inspector;
- verify the meter number;
- read the meter in the consumer’s presence;
- compare the reading with the billed reading;
- issue a written inspection report;
- explain the billing computation;
- suspend collection of the disputed excess pending verification, if allowed;
- refrain from disconnection while the dispute is pending.
The request should be in writing and received by the provider through an official channel.
XI. Demand a Meter Test
If the consumer suspects the meter is defective, the consumer may request a meter accuracy test.
A meter test may determine whether the meter is:
- over-registering;
- under-registering;
- stuck;
- damaged;
- tampered;
- improperly calibrated;
- beyond acceptable tolerance.
A. Who conducts the test?
Depending on the provider’s rules, the test may be conducted by:
- the water provider’s technical personnel;
- an accredited testing facility;
- a government or regulatory body;
- another authorized entity.
B. Consumer presence
The consumer should request to be present during meter removal, sealing, testing, or replacement.
C. Written test result
The consumer should demand a written test report showing:
- meter number;
- test date;
- test method;
- test results;
- accuracy findings;
- conclusion;
- recommendation;
- name and signature of testing personnel.
D. Effect of test result
If the meter is found inaccurate or defective, the consumer should request billing correction or refund. If the meter is accurate, the provider may maintain the bill, although other issues may still be disputed.
XII. Written Complaint to the Water Provider
A formal complaint should be concise, factual, and supported by documents.
A. Contents of the complaint
The complaint should state:
- account name;
- account number;
- service address;
- billing period disputed;
- amount billed;
- normal average bill;
- reason the bill is excessive;
- request for actual meter reading;
- request for meter testing, if applicable;
- request for billing breakdown;
- request to hold disconnection;
- list of attached evidence;
- contact details.
B. Attachments
Attach copies of:
- disputed bill;
- prior bills;
- photos of meter;
- photos or videos of leak test, if any;
- repair report, if leak was found;
- plumber’s certification, if available;
- proof of prior payments;
- correspondence with provider;
- identification card;
- authorization letter, if representative is filing.
C. Filing method
The complaint may be filed through:
- customer service center;
- email;
- online portal;
- registered mail or courier;
- provider app;
- official complaint form.
The consumer should keep proof of filing, such as receiving copy, ticket number, email acknowledgment, or reference number.
XIII. Paying Under Protest
If the due date is near and disconnection is threatened, the consumer may consider paying under protest.
This means the consumer pays to avoid disconnection but expressly states that payment does not admit the correctness of the bill.
The protest should be written and should state:
- the bill is disputed;
- payment is made to avoid disconnection;
- the consumer reserves the right to refund, credit, or adjustment;
- the complaint remains pending.
This is useful because some providers may treat payment as acceptance unless the consumer clearly objects.
XIV. Request for Installment or Temporary Relief
If the bill is large and the provider refuses to suspend collection, the consumer may request:
- installment payment;
- temporary suspension of penalties;
- holding of disconnection;
- payment of average consumption pending investigation;
- payment of undisputed amount only;
- adjustment after investigation;
- crediting in future bills if overbilling is confirmed.
The provider may or may not grant these requests, depending on policy, but a written request creates a record of good-faith dispute.
XV. Disconnection Issues
Water service providers generally have rules on disconnection for non-payment. However, a disputed bill should be handled carefully.
A. Notice
The consumer should check whether a disconnection notice was issued and whether it properly identifies the amount, due date, and disconnection date.
B. Pending complaint
The consumer should notify the provider in writing that the bill is under dispute and request that disconnection be held pending resolution.
C. Improper disconnection
If service is disconnected despite a pending dispute, especially without proper notice or while the consumer has paid the undisputed amount or paid under protest, the consumer may escalate the complaint and seek reconnection, damages, or administrative relief depending on the circumstances.
D. Practical approach
Because water is essential, the consumer should act quickly before the disconnection date. Delayed complaints are harder to resolve.
XVI. Where to Escalate the Complaint
If the provider does not resolve the dispute, the consumer may escalate the matter.
The proper forum depends on the type of water provider.
A. For water districts
Complaints involving local water districts may be brought to the water district’s management, board, or appropriate oversight agency. Consumers may also inquire with the Local Water Utilities Administration for guidance where applicable.
B. For private concessionaires
Complaints may be escalated through the concessionaire’s internal complaints office and, where applicable, to the relevant regulatory office supervising the concession arrangement.
C. For LGU-operated systems
Complaints may be raised with the city or municipal waterworks office, mayor’s office, sanggunian, or local complaints desk.
D. For subdivisions and condominiums
If billing is handled by an HOA, condominium corporation, developer, or property manager, the complaint may be filed with the property management office, board of directors, DHSUD-related forum if applicable, or other appropriate body depending on the nature of the dispute.
E. For consumer complaints generally
The consumer may also consider filing a complaint with appropriate consumer protection offices, local government complaint desks, or small claims court if the dispute involves a money claim.
XVII. Small Claims Case
If the provider refuses to refund or adjust an excessive bill despite evidence of overbilling, a consumer may consider a small claims case if the claim is for a sum of money within the jurisdictional threshold.
A small claims case may be appropriate for:
- refund of overpayment;
- recovery of wrongfully collected charges;
- reimbursement of reconnection fees;
- collection of damages that are liquidated or supported by documents;
- enforcement of a billing adjustment agreement.
Small claims proceedings are designed to be simpler and faster than ordinary civil cases. Lawyers are generally not allowed to appear for parties at the hearing, although parties may consult lawyers beforehand.
XVIII. Civil Action for Damages
In serious cases, a consumer may consider a civil action for damages. This may arise when there is:
- wrongful disconnection;
- refusal to correct an obviously erroneous bill;
- negligence in meter reading;
- bad faith collection;
- harassment;
- failure to reconnect despite payment;
- damage to property during inspection or meter replacement.
Possible claims may include actual damages, moral damages, exemplary damages, attorney’s fees, and litigation expenses, depending on evidence and applicable law.
Civil litigation should be considered carefully because it may be costly and time-consuming.
XIX. Administrative Complaint
An administrative complaint may be appropriate where the provider violated service rules, failed to follow complaint procedures, ignored a valid dispute, refused meter testing, or disconnected service improperly.
Administrative remedies may seek:
- investigation;
- order to inspect meter;
- billing adjustment;
- reconnection;
- penalty against provider;
- compliance with service standards.
The correct agency depends on the provider and location.
XX. Evidence Needed for a Strong Dispute
A strong water bill dispute is evidence-based. The consumer should collect and preserve:
- current bill;
- prior bills;
- payment history;
- photos of the meter;
- video of the meter while all fixtures are closed;
- plumber’s report;
- leak repair receipts;
- meter test request;
- meter test result;
- written complaint;
- provider’s response;
- reference numbers;
- disconnection notice;
- proof of payment under protest;
- affidavits of occupants, if useful;
- photos of property showing no unusual water use;
- correspondence with landlord, HOA, or property manager.
The best evidence usually combines billing history, meter photos, and written communications.
XXI. Tenant-Landlord Issues
If the consumer is a tenant, the dispute may involve both the water provider and the landlord.
A. Direct account in tenant’s name
If the water account is in the tenant’s name, the tenant usually deals directly with the provider.
B. Account in landlord’s name
If the account is in the landlord’s name, the tenant may need the landlord’s cooperation to file a formal dispute or request meter testing.
C. Submetering
If the tenant is billed through a submeter, the dispute may be against the landlord, property manager, condominium corporation, or HOA rather than the main water provider.
The tenant should ask for:
- submeter reading;
- main meter reading;
- computation method;
- rate used;
- prior readings;
- proof of actual water bill;
- explanation of common-area water allocation.
D. Hidden leaks
Lease agreements may allocate responsibility for plumbing repairs. Generally, the responsible party depends on whether the leak is due to ordinary wear and tear, tenant misuse, structural defect, or maintenance obligation under the lease.
XXII. Condominium and Subdivision Water Billing
In condominiums and subdivisions, consumers may be billed through submeters or internal billing systems.
Common issues include:
- defective submeter;
- wrong unit reading;
- common area water loss passed to residents;
- delayed reading;
- administrative charges;
- minimum charges;
- shared meter allocation;
- leak in common line;
- leak inside unit;
- developer-controlled billing;
- HOA-imposed penalties.
Residents should request:
- copy of master bill;
- submeter reading history;
- allocation formula;
- board-approved water rates;
- proof of meter calibration;
- inspection report;
- explanation of common charges.
If the billing entity is an HOA or condominium corporation, the complaint may also involve association governance rules.
XXIII. Commercial and Business Accounts
Commercial consumers should examine whether the high bill arose from:
- increased operations;
- leaks in commercial equipment;
- cooling systems;
- restaurants, laundry, car wash, or manufacturing use;
- cleaning operations;
- construction;
- tenant or employee misuse;
- multiple lines or meters;
- classification change;
- sewerage or environmental charges;
- arrears;
- penalties.
Businesses should document normal operations, production volume, operating hours, and past consumption to show that the bill is abnormal.
XXIV. What to Do If There Is a Leak
If a leak is discovered, the consumer should:
- photograph or video the leak;
- call a plumber immediately;
- keep the repair receipt;
- request a plumber’s certification;
- photograph the repaired pipe or fixture;
- inform the provider in writing;
- request leak adjustment or consideration, if available;
- monitor succeeding bills.
A plumber’s certification should ideally state:
- location of leak;
- probable cause;
- date discovered;
- date repaired;
- estimate of severity;
- confirmation that leak has been repaired.
Even if the provider does not fully waive the bill, this evidence may help support an installment plan or partial adjustment.
XXV. What to Do If the Meter Reading Is Wrong
If the reading on the bill is higher than the actual meter reading, the consumer should immediately:
- photograph the meter;
- show the date and time if possible;
- compare meter number with bill;
- file a written complaint;
- request correction of bill;
- request suspension of penalties;
- request cancellation of disconnection notice;
- ask for a corrected statement of account.
This is one of the strongest grounds for disputing a water bill.
XXVI. What to Do If the Meter Is Inaccessible
If the provider claims it used estimated billing because the meter was inaccessible, the consumer should:
- ensure the meter is accessible;
- request an actual reading;
- ask when estimated billing began;
- ask how the estimate was computed;
- request adjustment based on actual reading;
- document that the meter is accessible going forward.
If the provider repeatedly estimated bills without clear explanation, the consumer may question the accumulated adjustment.
XXVII. What to Do If the Meter Is Shared
Shared meters are a common source of disputes.
If several units use one meter, the consumer should ask:
- who is responsible for the main bill;
- how the bill is allocated;
- whether there are submeters;
- whether common-area usage is included;
- whether any other unit has a leak;
- whether allocation is based on occupants, area, actual reading, or equal sharing;
- whether the computation is authorized by contract or association rules.
A consumer should not be charged arbitrarily without a transparent computation.
XXVIII. Demand Letter
A demand letter may be sent when ordinary customer service complaints are ignored.
The letter should:
- identify the account;
- state the disputed bill;
- explain why it is excessive;
- demand actual meter reading;
- demand meter testing or inspection;
- demand billing correction;
- demand that disconnection be held;
- give a reasonable period to respond;
- state that the consumer reserves all rights.
The tone should be firm but factual. Accusations of fraud should be avoided unless supported by evidence.
XXIX. Sample Structure of a Demand Letter
A consumer may use this structure:
Heading
- Date
- Provider name
- Office address
- Account details
Statement of facts
- Normal usage
- Disputed bill
- Abnormal increase
Grounds for dispute
- Wrong reading, suspected meter defect, no change in usage, or unexplained adjustment
Demands
- Actual meter reading
- Meter testing
- Billing breakdown
- Suspension of disconnection
- Correction or adjustment
Reservation of rights
- Payment under protest, if applicable
- Right to escalate complaint
- Right to seek refund or damages
Attachments
- Bills, photos, receipts, reports
XXX. Sample Demand Letter
Subject: Dispute of Excessive Water Bill and Demand for Actual Meter Reading
Date: __________
To: ____________________ Customer Service / Billing Department ____________________ Water Service Provider
Re: Account Name: ____________________ Account Number: ____________________ Service Address: ____________________ Billing Period: ____________________
Dear Sir/Madam:
I am writing to formally dispute the water bill for the billing period stated above in the amount of PHP __________. The bill is excessive and inconsistent with my usual consumption. My average monthly consumption is approximately ______ cubic meters, but the disputed bill reflects consumption of ______ cubic meters.
There has been no corresponding change in household/business usage that would justify this increase. I have also reviewed the meter and prior bills, and the billed amount appears to require verification.
Accordingly, I respectfully demand that your office:
- conduct an actual meter reading in my presence;
- verify that the meter number corresponds to my account;
- provide a written breakdown of the computation of the disputed bill;
- inspect and test the meter for accuracy, if necessary;
- suspend any disconnection, penalty, or collection action on the disputed excess while the matter is under investigation; and
- correct the bill, issue an adjustment, or credit/refund any overpayment if the bill is found erroneous.
Attached are copies of my disputed bill, prior bills, and meter photographs for your reference.
This dispute is made in good faith and without waiver of any rights and remedies available under law, regulation, contract, or applicable service rules.
Thank you.
Very truly yours,
Name Contact Number Email Address
XXXI. Payment Under Protest Wording
If payment is necessary to avoid disconnection, the consumer may write on the payment receipt, email, or separate letter:
“Payment is made under protest and solely to avoid disconnection. I do not admit the correctness of the disputed bill and reserve the right to demand adjustment, refund, credit, and all other remedies after investigation.”
The consumer should keep a copy.
XXXII. When the Consumer Should Not Delay
Immediate action is important when:
- there is a disconnection notice;
- the bill is several times higher than usual;
- the actual meter reading is lower than the billed reading;
- the meter is moving even when all taps are closed;
- there is a suspected leak;
- there is suspected illegal tapping;
- the provider refuses to explain the bill;
- the account has arrears from disputed charges;
- the bill is in the name of a landlord or association.
Delay can weaken the dispute because it may become harder to prove the actual meter condition at the time of billing.
XXXIII. Possible Outcomes
After investigation, the provider may:
- confirm the bill as correct;
- correct a wrong reading;
- adjust estimated billing;
- replace a defective meter;
- refund or credit overpayment;
- grant installment payment;
- waive or reduce penalties;
- deny the complaint;
- disconnect for unpaid undisputed charges;
- refer the matter to another office or regulator.
If the provider denies the complaint, the consumer should ask for a written explanation.
XXXIV. Rights and Duties of the Consumer
Rights
A consumer may demand:
- accurate billing;
- actual meter reading;
- explanation of charges;
- correction of errors;
- meter testing;
- proper notice before disconnection;
- fair complaint handling;
- refund or credit for overbilling;
- written response to a formal complaint.
Duties
A consumer should:
- pay lawful charges;
- allow access to the meter;
- protect the meter from damage or tampering;
- report leaks promptly;
- maintain private plumbing;
- preserve receipts and bills;
- file disputes promptly;
- avoid illegal reconnection or meter tampering.
XXXV. Meter Tampering Allegations
A water provider may sometimes allege tampering if the meter is damaged, reversed, bypassed, missing, or irregular.
A consumer accused of tampering should:
- deny unsupported allegations in writing;
- ask for the inspection report;
- ask for photos and evidence;
- request to be present during inspection;
- avoid signing admissions without understanding them;
- request independent verification;
- preserve the meter condition through photos;
- consult counsel if penalties or criminal allegations are made.
Tampering allegations are serious and should not be ignored.
XXXVI. Prescription and Timeliness
Consumers should dispute excessive bills as soon as possible. While different rules may apply depending on the provider and claim, prompt written objection is always best.
A delayed complaint may be challenged on grounds that:
- the consumer failed to object within the billing period;
- the meter condition has changed;
- the consumer already paid without protest;
- records are no longer readily available;
- the excessive consumption was not timely investigated.
The safest practice is to file the dispute immediately upon receiving the bill.
XXXVII. Practical Checklist
Upon receiving the excessive bill
- Review the bill.
- Compare prior bills.
- Check meter number.
- Photograph the meter.
- Conduct a leak test.
- Ask household members or employees about unusual use.
- Check toilets, pipes, valves, and tanks.
- File written complaint.
- Request actual reading.
- Request meter testing if needed.
- Ask for suspension of disconnection.
- Pay undisputed amount or pay under protest if necessary.
Documents to keep
- Disputed bill
- Prior bills
- Meter photos
- Complaint letter
- Ticket/reference number
- Provider’s response
- Disconnection notice
- Payment receipt
- Plumber’s report
- Repair receipts
- Meter test report
XXXVIII. Legal Strategy
A good dispute strategy follows this sequence:
Verify facts
- Compare bill, meter, and usage history.
Document evidence
- Photos, bills, videos, repair reports.
File written complaint
- Avoid relying only on phone calls.
Demand inspection
- Request actual meter reading and meter test.
Prevent disconnection
- Pay undisputed amount or pay under protest if needed.
Escalate
- Use internal escalation, regulatory complaint, or legal remedies.
Seek refund or adjustment
- Demand credit, refund, or corrected bill.
XXXIX. Common Mistakes to Avoid
Consumers should avoid:
- ignoring the bill;
- waiting until after disconnection;
- relying only on verbal complaints;
- failing to photograph the meter;
- paying without protest when disputing;
- refusing all payment, including undisputed amounts;
- tampering with or removing the meter;
- preventing inspection;
- making unsupported accusations;
- failing to keep receipts;
- failing to check for leaks;
- signing settlement forms without reading them.
XL. Conclusion
An excessive water bill in the Philippines should be addressed promptly, formally, and with evidence. The consumer should first review the bill, compare prior usage, inspect the meter, check for leaks, and file a written dispute with the water service provider.
The most important demand is an actual meter reading, preferably in the consumer’s presence, followed by a request for a written billing breakdown and, when necessary, meter testing. If disconnection is threatened, the consumer may pay the undisputed amount or pay under protest while preserving the right to adjustment, refund, or escalation.
A high bill is not automatically invalid, but neither is it automatically correct. The provider must be able to justify the charge through accurate reading, proper computation, and fair procedure. A consumer who documents the facts and asserts rights in writing is in the best position to obtain correction, relief, or legal remedy.