How to Complain to Cuckoo
Step by step: where to complain, what to say, and where to go if Cuckoo does not put it right.
Consumer Protection UK is independent and is not connected to Cuckoo. This guide uses information published by Cuckoo and by the schemes named below. All product names, logos and brands are property of their respective owners.
- Where to complain
- Cuckoo is listed as a member of CISAS on the scheme's own list of covered communications providers. Its own complaints page could not be read, so its internal complaint steps are not described here.
Use the contact or help section of the company’s own website to find the current complaints route. - If it is not resolved
- CISAS
- Checked
- 4 October 2026 (company pages and scheme websites). Rules and pages change, so check the official page before you rely on this.
Short guide: we could not read this company’s own complaints page, so we only list what we could confirm from the scheme’s official information. Check the company’s website for its current complaints route.
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
- Keep speed test screenshots and note the dates of every fault report and call.
- Ask whether you qualify for compensation for a delayed repair, missed appointment or loss of service.
- Check your contract if you want to leave: you may be able to leave without charge if the service is not what was promised.
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.