Broadband Complaints: How to Complain and Escalate to the Ombudsman (2026)
Quick answer: if your broadband or home phone goes wrong, the best first step is to complain to your provider and give them a fair chance to put it right, because most complaints are sorted this way, and quickly. If yours is not resolved, you now reach free, independent help two weeks sooner than before. This guide walks through exactly how to complain, what a deadlock letter is, which ombudsman covers your provider, and what you can realistically expect to get.
Start with your provider, and give them a fair chance
The ombudsman is a last resort, not a first port of call. Ofcom found that between January 2022 and 2024, 79% of complaints to the biggest telecoms firms were resolved in less than a week, and 94% within 6 weeks (Ofcom, 2025). So raise it clearly with your provider first, in writing where you can, and most of the time they will fix it.
Key takeaways
- Complain to your provider first, in writing, and keep a dated record of everything.
- Since 8 April 2026 you can escalate an unresolved complaint after 6 weeks, down from 8, or straight away with a deadlock letter.
- Your provider belongs to one of two free schemes, the Communications Ombudsman or CISAS, and their decision is binding on the provider if you accept it.
- Separately, Ofcom's automatic compensation pays set amounts for delayed repairs, missed appointments and delayed installs, without you having to ask.
What changed for broadband complaints on 8 April 2026?
The wait to escalate got shorter. Since 8 April 2026, telecoms customers can refer an unresolved complaint to an independent Alternative Dispute Resolution (ADR) scheme, an ombudsman, after 6 weeks, reduced from the previous 8 weeks (Ofcom, 2025). Ofcom made the change after finding that of the roughly 700,000 people who still had a complaint open at 6 weeks, only about one in five could get it resolved or referred before the old 8-week threshold (Ofcom, 2025). In plain terms, thousands of people were left waiting when they could have had independent help.
Since 8 April 2026, you can take an unresolved telecoms complaint to a free, independent ombudsman, the Communications Ombudsman or CISAS, after 6 weeks, or sooner with a deadlock letter (Ofcom, 2025).
One important detail: the 6-week rule is not backdated
The shorter wait applies only to complaints first raised on or after 8 April 2026. If you complained before that date, the old 8-week rule still applies unless you get a deadlock letter (Communications Ombudsman, 2026).
How to complain, step by step
Here is the full journey, from your first call to a binding decision.
Use their official complaints procedure, by phone, webform, email or post. Put it in writing where you can, so you have a timestamped record. Providers must publish a complaints code of practice with these contact details (Ofcom, 2025b).
Note the date you first complained, any reference numbers and names, and save emails, webchat transcripts, bills and screenshots. This is your evidence if you need to escalate.
For a complaint raised on or after 8 April 2026, if it is still unresolved after 6 weeks you can escalate. If you have clearly hit a wall sooner, ask your provider for a deadlock letter to skip the wait.
Find out whether they use the Communications Ombudsman or CISAS (see below), then submit your complaint with your evidence. It is free.
The scheme looks at both sides and decides independently. Its decision is binding on your provider only if you accept it, and the provider must then act within the scheme's deadline.
Keep paying the parts of your bill you do not dispute
While a dispute is being sorted, keep paying anything you are not disputing, to protect your credit record (Communications Ombudsman, 2026).
What is a deadlock letter, and how do I get one?
A deadlock letter, sometimes called a "final response," is written confirmation from your provider that it cannot resolve your complaint. It is your fast pass: with one, you can go straight to the ombudsman without waiting out the 6 weeks (Communications Ombudsman, 2026). You can ask for one once you have exhausted your provider's complaints process. A provider may reasonably decline if it believes it can still resolve things, or if the complaint falls outside the scheme's scope. Once you have your deadlock letter, refer your dispute within 12 months (Communications Ombudsman, 2026).
Which ombudsman does my broadband provider use?
Every provider that serves consumers and small businesses must belong to one of just two Ofcom-approved schemes, and both are free to use (Ofcom, 2025c). You can find out which one covers you from Ofcom's ADR checker, your provider's complaints code of practice or bill, or your deadlock letter, which names the scheme.
Renamed from Ombudsman Services: Communications in July 2023.
Used by (examples): BT, EE, Plusnet, Three, giffgaff, Tesco Mobile, Utility Warehouse, Hyperoptic, Community Fibre, Gigaclear and YouFibre.
The Communication and Internet Services Adjudication Scheme, run by CEDR.
Used by (examples): Sky, TalkTalk, Zen Internet and 4th Utility.
Scheme membership changes over time. For example, complaints about Three move to CISAS from 21 May 2026. Always check the live Ofcom list for your provider (Ofcom, 2025c; CEDR, 2026).
Is the ombudsman really free?
Yes. As Ofcom states, ADR schemes are free to use, and CISAS confirms it is a free service under the Communications Act 2003 (Ofcom, 2025c; CEDR, 2026). The provider pays the scheme's fees, not you. There is no catch, and you do not need a solicitor.
What can the ombudsman do, and how much compensation might I get?
The ombudsman makes an impartial decision based on the evidence from both sides. It can require your provider to explain or apologise, fix the problem, credit or cancel your account, release you from your contract, or make a financial award. The Communications Ombudsman says that as well as fixing the problem, it may decide the provider should make a "time and trouble" award to recognise the disruption, and that "a typical financial award ranges between £50 to £100," on top of any refund (Communications Ombudsman, 2026b).
Two things are worth being realistic about. First, this is not a jackpot: awards are usually modest. Second, the decision is binding on your provider only if you accept it. With the Communications Ombudsman, once you accept, your provider is legally bound to act, normally within 28 days; if you reject the decision, you keep the right to pursue other routes such as court (Communications Ombudsman, 2026). With CISAS, the adjudicator's decision is binding only if you accept it within 30 working days, after which the provider must comply within 20 working days, and CISAS cannot consider claims above £10,000 (CEDR, 2025).
Automatic compensation: separate, automatic, and worth checking your bill for
This is a different scheme from the ombudsman, and an easy win. Under Ofcom's automatic compensation scheme, participating providers pay set amounts without you having to ask, for three specific failures. From 1 April 2026 the rates are (Ofcom, 2026):
| What went wrong | You qualify if | Amount (from 1 April 2026) |
|---|---|---|
| Delayed repair | Your service stops and is not fully fixed after two full working days | £10.34 for each day it stays broken |
| Missed appointment | An engineer does not turn up, or cancels with under 24 hours' notice | £32.31 per missed appointment |
| Delayed start of a new service | Your provider misses the promised start date | £6.46 per day of delay, including the missed date |
Payment normally arrives as a bill credit within 30 calendar days (Ofcom, 2026). The scheme covers residential fixed broadband and landline, but not slow speeds, occasional drop-outs or in-home wiring faults, and if your broadband and landline fail together you get a single payment (Ofcom, 2026). The scheme is voluntary for providers, but the big names covering the large majority of customers take part (Jackson, 2026). Our guide to the automatic compensation rates and our service failure and compensation page explain this in full. If you had a qualifying failure and no credit appears within 30 days, raise it, and if it is not sorted, that itself can go to the ombudsman.
Can small businesses use the telecoms ombudsman?
Yes. ADR is open to residential consumers and to small businesses and not-for-profit organisations with 10 or fewer employees (Ofcom, 2025d). So a sole trader or a small team can use exactly the same free route as a household.
Where can I get free advice about a broadband complaint?
Citizens Advice is the free, independent service to lean on. It publishes step-by-step guidance on disputing a phone, internet or TV bill, template complaint letters, and an explainer on using an ombudsman, and its consumer helpline is 0808 223 1133 (Citizens Advice, 2024). Our own guide to broadband complaints and your rights sets out the whole process too.
Still not happy? You do not have to stay
Give your provider a fair chance to put things right, and use the free ombudsman route if it genuinely fails. But if you have been through the complaints and ombudsman process and you are simply fed up, you are free to vote with your feet. The quickest way to see your options is to check what is actually available where you live, and what it costs, then make a calm, informed switch. Our switching hub explains how, and if a price rise or unresolved fault has left you wanting out, our guide to leaving your contract early covers your options.
Frequently asked questions
How long before I can go to the ombudsman about my broadband?
Since 8 April 2026, if a complaint you raised on or after that date is still unresolved after 6 weeks, you can refer it free of charge to an independent ombudsman, reduced from the previous 8 weeks. You can go sooner if your provider gives you a deadlock letter. Complaints first raised before 8 April 2026 keep the 8-week rule unless you reach deadlock.
What is a deadlock letter?
A deadlock letter, sometimes called a final response, is written confirmation from your provider that it cannot resolve your complaint. It lets you go straight to the ombudsman without waiting out the 6-week period, and you then have 12 months from the letter to refer your dispute.
Is the Communications Ombudsman free?
Yes. Both Ofcom-approved schemes, the Communications Ombudsman and CISAS, are free to use for consumers and eligible small businesses. The provider pays the scheme's fees, not you.
How do I find out which ombudsman my broadband provider uses?
Every provider must belong to one of two schemes, the Communications Ombudsman or CISAS. Check Ofcom's ADR checker list, your provider's complaints code of practice or bill, or your deadlock letter, which names the scheme. Membership can change, so check the live Ofcom list.
Can I get compensation from the ombudsman?
Sometimes. As well as ordering a fix, an apology or release from your contract, the Communications Ombudsman can make a time and trouble award to recognise the disruption, which it says typically ranges between £50 and £100, on top of any refund. The decision is binding on your provider only if you accept it.
Is automatic compensation the same as going to the ombudsman?
No, they are separate. Ofcom's automatic compensation scheme pays fixed amounts without you having to complain, for a delayed repair, a missed engineer appointment or a delayed start to a new service. From 1 April 2026 these are £10.34 a day, £32.31, and £6.46 a day respectively. The ombudsman is the route for wider complaints that your provider has not resolved.
References
- CEDR. (2025). Help and guides: CISAS. Centre for Effective Dispute Resolution. https://www.cedr-assist.com/consumer/cisas/help-guides/
- CEDR. (2026). Submit a complaint about a telecommunications provider (CISAS). Centre for Effective Dispute Resolution. https://www.cedr-assist.com/consumer/cisas/make-a-complaint/
- Citizens Advice. (2024). Dispute a mobile, phone, internet or TV bill. https://www.citizensadvice.org.uk/consumer/phone-internet-downloads-or-tv/dispute-a-phone-internet-or-tv-bill/
- Communications Ombudsman. (2026). Consumer wait time reduced. https://www.commsombudsman.org/news/consumer-wait-time-reduced
- Communications Ombudsman. (2026b). What to expect. https://www.commsombudsman.org/what-to-expect
- Jackson, M. (2026, April 4). Ofcom raise UK consumer compensation payments for broadband ISP woes. ISPreview UK. https://www.ispreview.co.uk/index.php/2026/04/ofcom-raise-uk-consumer-compensation-payments-for-broadband-isp-woes.html
- Ofcom. (2025). Quicker complaints resolution for telecoms customers, under new Ofcom rules. https://www.ofcom.org.uk/phones-and-broadband/service-quality/quicker-complaints-resolution-for-telecoms-customers-under-new-ofcom-rules
- Ofcom. (2025b). A summary of Ofcom's rules for phone and broadband providers. https://www.ofcom.org.uk/phones-and-broadband/accessibility/rules-for-providers
- Ofcom. (2025c). Making a complaint and using ADR schemes. https://www.ofcom.org.uk/phones-and-broadband/service-quality/adr-schemes
- Ofcom. (2026). Automatic compensation: What you need to know. https://www.ofcom.org.uk/phones-and-broadband/service-quality/automatic-compensation-need-know
Written by Adrian James, Broadband Editor at BroadbandSwitch.uk (LinkedIn). Reviewed by Dr Alex J. Martin-Smith (LinkedIn). Published 20 July 2026. This guide is information, not legal advice.