As of 13 August 2026, AI can challenge an incorrect energy bill.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open the disputed energy bill and the previous bill, then copy the billing dates, meter readings, unit rates, standing charges, payments, credits and balance into the prompt.
   2. Take dated photographs of the current meter readings and record whether each reading is from a smart meter, a customer reading or a supplier visit.
   3. Add your tariff information, payment records and any earlier messages or complaint reference to the prompt, removing passwords and unnecessary personal information.
   4. Ask the chatbot to produce the comparison table and complaint draft using only the supplied evidence, and to separate confirmed discrepancies from points it cannot check.
   5. Compare every amount, date, reading and tariff detail in the draft against the original bills, meter photographs and bank or payment records, correcting the draft where they differ.
   6. Send the checked complaint and supporting evidence through the supplier's official contact route, keep a copy, and ask the supplier to confirm the disputed balance and next steps in writing.
   7. If the supplier does not resolve the complaint, open its complaints procedure and check the current escalation route with Citizens Advice or an energy adviser before taking further action.

   Prompt

   I am in the UK and want to challenge an energy bill that I believe is incorrect. Use only the information I provide and do not invent readings, dates, rates, rules or amounts. Treat estimates as estimates and identify any missing evidence.
   
   My supplier: [SUPPLIER]
   Account or reference number, with sensitive details removed: [REFERENCE]
   Address or property description: [PROPERTY]
   Bill date and billing period: [DATES]
   Amount charged and amount I believe is correct: [AMOUNTS]
   Electricity or gas meter readings shown on the bill: [BILL_READINGS]
   Actual meter readings, with dates and whether they were customer or supplier readings: [ACTUAL_READINGS]
   Meter type, such as smart, prepayment or standard: [METER_TYPE]
   Tariff name and unit rates shown on the bill: [TARIFF_DETAILS]
   Standing charges shown on the bill: [STANDING_CHARGES]
   Previous balance, payments and credits: [PAYMENTS_AND_BALANCE]
   Relevant earlier bills or correspondence: [EARLIER_EVIDENCE]
   What I have already told the supplier and its response: [CONTACT_HISTORY]
   
   First, make a table comparing the bill with my evidence. Separate confirmed discrepancies from points that cannot be checked. Show the arithmetic for each disputed charge and say exactly which document supports each figure. Then list the evidence I should gather next. Finally, draft a concise complaint to the supplier asking it to investigate, correct the account if appropriate, confirm the balance, and explain how it will handle the disputed amount while it investigates. Do not claim that a legal right or supplier rule applies unless I have supplied the source. Tell me which statements I must check against the original bill before sending. This is not professional advice.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.