Preview / coming soon Energy back-billing complaint — Ofgem 12-month rule

Energy back bill — complaint letter to your supplier

Answer a few questions. Your DIY complaint letter assembles below for free preview, print, or download (.txt / .md). Nothing is uploaded in this local build. Official rules: Ofgem — What to do if you get a back bill.

Pricing (not live yet): letter fee planned later (same ballpark as parking, ~£2.99–£4.99). Full preview and download work free here. No affiliates in this phase.

Question flow: customer type → fuel → supplier → bill details → 12-month grounds → unreasonable check → facts → your details.

1. Customer type I am

Ofgem’s consumer back-billing page is written for households and microbusinesses. Ofgem guidance.

2. Fuel Supply

3. Supplier & account Supplier name Complaints email or postal address Account number MPAN / MPRN (optional) Supply address

4. Back bill details Date of back bill / charge recovery notice Earliest date the bill claims to cover Latest date the bill claims to cover Amount claimed How were you told about this debt?

5. Why the 12-month rule may apply

Select all that fit. Ofgem: you generally do not have to pay for energy used more than 12 months ago if you had no accurate bill, no prior statement of account for those charges, or your Direct Debit was set too low.

I had not received an accurate bill for the older period before I had not been told what I needed to pay via a statement of account for those charges My Direct Debit was set too low to cover what I needed to pay Billing relied on estimated readings for a long period Meter, tariff, or prepayment balance was wrong / not updated This undercharge was first raised more than 12 months after the older usage Extra detail on the rule points

6. “Acted unreasonably” check (screening only) Do any of Ofgem’s “acted unreasonably” examples apply to you?

This is a screening question only, not a determination. If the exception may apply, outcomes are more uncertain — see Ofgem.

Your position on this point

7. Facts & evidence Facts (short timeline) Evidence list Ask for a payment plan on any remaining (recent) balance?

8. Your details (letter header) Full name Address line 1 Address line 2 Postcode Email Phone Letter date

Letter preview

Fill in the form and click “Update letter preview”.

Guides

Markdown template: templates/energy-back-billing-complaint.md · Plan: LAUNCH_PLAN_ENERGY.md

After 8 weeks or a deadlock letter: Energy Ombudsman (free). Ofgem does not decide individual billing disputes.