Back-Billing Complaint: Energy Supplier Charging Old Usage
Challenge an energy supplier's back-billing for past usage, asking for the meter data, the dates covered and a corrected bill or payment plan.
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Write a complaint to an energy supplier that has sent a large bill covering usage from a long time ago. Facts I will give: supplier [SUPPLIER_NAME], account number [ACCOUNT_NUMBER], the back-bill date and amount [BACK_BILL_DETAILS], the period it covers [PERIOD_COVERED], my meter readings and bills for that period [MY_READINGS], why I think it is wrong or late [MY_REASONS], what I want [DESIRED_REMEDY]. The letter needs to list the billed period with the dates, ask for the readings and the calculation used, compare it with my own readings, ask why it was not billed earlier and ask for a corrected bill or an affordable plan. Documents that usually matter: Previous bills and payments, photos of meter readings with dates, the back-bill letter, the supplier's account history and call notes. What I can realistically request: A recalculated bill, a limit on the period charged if the rules allow, an affordable payment plan and a goodwill credit for the delay. The usual pushback: Suppliers may say the usage was real and unbilled; reply by asking for readings, the reason for the delay and the rule on how far back they may bill [VERIFY]. Begin with a timeline table for the back-billing complaint, energy supplier charging old usage (date, event, source document), note what is missing, and then keep every date in the letter consistent with it. Provide the letter plus a short cover note, around 50 words, and next an escalation ladder if I am ignored (ask the billing team, then senior complaints, then the energy ombudsman after the waiting period), and a proof checklist (bills, meter photos, back-bill letter, account history, call notes). Email it with a clear subject line and the PDF attached, then keep the sent message with its full headers and do not delete any reply. Make this read like a private person's own letter, so that nothing implies professional status. Name no legal rule you cannot source from my input; stay within [JURISDICTION] and [RELEVANT_LAW_OR_POLICY_IF_KNOWN] as given, and add a line telling me to confirm the rules with a professional or consumer agency. Make it steady, civil and clear, with no insults or empty threats, put the date from [DEADLINE] on any request, and be honest about limits. None of this is legal advice.
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See an example result (fictional data)
Subject: Back-bill of 1,284 for 2023 usage, account 77120 You billed me on 2 February for gas used from 1 January to 31 December last year. I paid every monthly bill during that year and took a reading on 31 December of 4,512. Please send the readings you used, the period you say was unbilled and the reason it was not billed sooner. Based on my own reading I calculate 1,030 of usage in that period, not 1,284. I ask for a corrected bill within 14 days and a payment plan while you check.
Illustrative only, made-up data. Your results will differ and must be reviewed.