Meter serial numberWrong meterBilling evidence

Meter Serial Number Does Not Match Your Bill?

A serial number mismatch can mean the supplier is billing against the wrong meter record, especially in flats, new builds, converted properties or after meter exchanges.

Reviewed: 2026-05-08Focus: UK household energy billsType: Information, not legal advice

The short answer

If the serial number on the bill does not match the meter in your property, do not only dispute the amount. Ask the supplier to confirm the meter details, supply point and reading history before rebilling.

What to check

Meter plate

Take a photo of the meter serial number.

Bill details

Find the serial or meter point shown on the bill.

Property setup

Check if there are multiple meters, flats or a recent meter exchange.

Reading history

Ask which readings belong to which meter.

Serial number mismatch wording

Subject: Meter serial number mismatch on bill
The meter serial number shown on my bill/account does not appear to match the meter at my property.
Bill/account serial number: [serial on bill].
Meter serial number at property: [serial on meter].
Please investigate whether my account is linked to the correct meter and provide the reading history used for recent bills.
Please pause collection on the disputed amount until the meter identity and readings are confirmed.

Frequently asked questions

Is a serial number mismatch serious?

Yes. It can lead to the wrong usage being billed to the wrong property.

What if the supplier says the bill is still correct?

Ask for the meter point and reading history evidence in writing.

Should I send photos?

Yes. A clear meter photo is usually the fastest way to make the issue concrete.

Official sources used for this page

BillDecoded translates official process and billing information into practical checks. It is not affiliated with the Ombudsman, Ofgem, Citizens Advice, Which? or any supplier.