How to Complain to Octopus Energy
Step by step: where to complain, what to say, and where to go if Octopus Energy does not put it right.
Consumer Protection UK is independent and is not connected to Octopus Energy. This guide uses information published by Octopus Energy and by the schemes named below. All product names, logos and brands are property of their respective owners.
- Where to complain
- Octopus Energy official complaints page (opens in a new tab)
Octopus Energy's 'unhappy' page lets you complain by email, phone or post. If it cannot resolve the issue it issues a deadlock letter, which you can take to the Energy Ombudsman. - If it is not resolved
- Energy Ombudsman
- When you can escalate
- 8 weeks from first raising the complaint, or earlier if the supplier issues a deadlock letter
- Checked
- 2 October 2026 (company pages and scheme websites). Rules and pages change, so check the official page before you rely on this.
What to Do, Step by Step
- Gather your evidence. Order or account number, dates, receipts, screenshots, emails and what was said on calls.
- Complain in writing using the route above, and ask for a complaint reference. Say what went wrong, what you want, and by when (14 days is reasonable). Our free letter templates can write it for you.
- Keep a record. Note dates, names and reference numbers of every contact. Use email or a form where you can, so you have proof.
- Ask for a final response if you are not getting anywhere, then follow the escalation route above.
- Use other routes if they apply. If the company does not fix it, take it to the free ombudsman or ADR scheme named above. Your bank or card provider may help if you paid by card (Section 75 or chargeback). The Citizens Advice consumer service gives free advice and can pass a report to Trading Standards.
Useful to Know
- Take meter readings and photos, and keep your bills.
- Ask for a complaint reference.
- If the supplier is at fault for a back-bill, you should not normally be charged for energy supplied more than 12 months before you were told about the error.
- If you are struggling to pay, tell them early and ask about support. Do not ignore it.
Want help? If you would like one of our team to look at your complaint, our initial case review is free. Start your case. We cannot guarantee any outcome and do not give legal advice.