Cuckoo customer service 2026

Onestream. Cuckoo’s own site now says "Cuckoo Broadband is part of the Onestream family" and, on a dedicated update page, that "Onestream Ltd now runs things behind the scenes. Same package, same speed, same price." Two things do change for existing customers, and both are worth checking rather than assuming: your account number changes, while the contract and service continue unaltered, and your direct debit moves to the last working day of each month, with invoices generated 14 days beforehand in MyAccount. Cuckoo has not published a date for the transition. The registered address has changed with the ownership: written contact now goes to Onestream Limited trading as Cuckoo Broadband, Unit 15, Fulcrum 2, Solent Way, Fareham, PO15 7FN, not the old London address.

Better than any of the big four UK ISPs by every public metric we can verify. On Trustpilot, Cuckoo holds 4.4 / 5 across nearly 8,000 reviews, compared with 1.3 to 1.5 for Sky, Virgin Media, TalkTalk and Vodafone, and 4.0 to 4.1 for BT and EE. The pool is smaller, which makes the number more volatile, but the direction has been the same for years. The single most-cited reason is that you actually get a UK-based human on the phone, not a script-reading offshore agent.

Live chat runs Monday to Friday 09:00 to 19:30 and Saturday 09:00 to 16:00, and is closed on Sunday. Cuckoo calls chat "the best and fastest way to get in contact with us", so it is the channel to reach for first on six days out of seven. Sunday is the exception and it is worth knowing before you plan around it: Cuckoo’s own wording is "on Sundays we’re tech support only, by phone, not chat", so a Sunday billing or contract question cannot be answered at all, while a broken connection can be, on 0330 912 9955 between 09:00 and 16:00. The help centre is self-service around the clock, and email gets a reply on the next working day.

Phone 0330 912 9955 or email [email protected] and explicitly ask for it to be logged as a formal complaint. Note the reference number. Cuckoo aims to resolve complaints within 5 to 10 working days. If it is not resolved after 6 weeks, or you receive a deadlock letter sooner, you can escalate to CISAS for free, independent arbitration.

Both. On the 1-month rolling contract, give 14 days notice and you can cancel any month with no exit fee. On the 12-month or 24-month plan, cancelling inside the minimum term means paying the remaining monthly fees. The cleanest way is to email [email protected] so you have it in writing, or call the support line. There is no “retentions team” pressure routine of the kind some big ISPs use.

The Ofcom automatic compensation scheme pays a fixed daily amount when your ISP fails to deliver. For broadband, that means: £9.76 per day if a service fault is not fixed within 2 working days, £29.15 for a missed engineer appointment, and £6.10 per day for a delayed activation of new service. Cuckoo is a member of the scheme and credits should be applied to your account automatically.