Incorrect billSpecific errorAction plan

Energy bill incorrect? What to do next

When a bill is wrong, the fastest route is rarely a general complaint. It is a specific error report with attachments: wrong reading, wrong dates, wrong rate, duplicated period, missing refund or something else. Precision speeds up correction.

Reviewed: 26 March 2026Focus: UK household energy billingType: Information, not legal advice

The five most common “incorrect bill” categories

  • Wrong reading.
  • Estimated bill when actual readings were available.
  • Wrong tariff or rate period.
  • Wrong billing dates or duplicated days.
  • Missing credit, refund or account adjustment.

Most disputes become easier once you put the case into one of those buckets.

Your first written request

State the issue, attach the evidence and ask for the correction. Example: “The bill dated [date] appears incorrect because [specific reason]. Please correct it by [rebill/refund/credit correction] using the attached evidence and confirm the revised balance in writing.”

Specificity beats volume. One clear page with attachments is usually stronger than five pages of general frustration.

Frequently asked questions

Should I call or email about an incorrect bill?

Email is usually better because you can attach evidence and preserve the wording.

Do I need to know the regulation behind the error?

No. A clear factual explanation and the right evidence usually matter more.

What if the supplier keeps saying the bill is correct without explanation?

Ask for a line-by-line explanation and then move to the formal complaint process if they still do not deal with the issue properly.