William Hill complaints: escalating to IBAS

A William Hill complaint goes through three stages if you're a UK customer. You raise it with customer service on live chat. If that doesn't settle it, you ask the Second Opinion team at second_opinion@willhill.com to look again. If you're still unhappy, or eight weeks pass without a final answer, you can take it to IBAS, the Independent Betting Adjudication Service, which is free to you. Our complaints and ADR hub shows the same route for other regulators.010306

We read William Hill's UK terms (version 2026/1.4, dated 30 September 2026) and six of its help-centre articles on complaints on 7 November 2026. On the same day we read IBAS's terms, FAQ, appeals and contact pages and its operator directory, the Gambling Commission's complaints guidance and its register entry for William Hill, and the terms of two other UK operators we track. We haven't taken a complaint through William Hill's process, and this isn't a review of the company.010306071315

The three steps for UK customers

William Hill's help page "How to Raise a Complaint", last edited on 27 July 2026, sets out the UK route:01

Step 2 has a condition. The same page says that if you haven't had a full resolution from customer services on your first complaint, "the Second Opinion Team will direct you back to Step 1 until this stage has been completed." So email the Second Opinion team only once customer service has given you its answer, and keep that answer.01

Clause 14.4 of the terms opens step 3: you may go to IBAS "including if our Second Opinion Team hasn't provided you with a final response within eight (8) weeks or if you're not satisfied with the outcome of the complaint". William Hill's own IBAS page says the company has agreed to "adhere to any rulings which they may subsequently make" and that "William Hill is a registered I.B.A.S. bookmaker."0302

When the eight weeks start

This is the detail to get right. William Hill's help page ties the eight weeks to the Second Opinion stage: once you escalate, it will "endeavour to resolve your complaint as soon as possible, this will be within 8 weeks." Clause 14.4 speaks of the Second Opinion team's final response within eight weeks and doesn't say when that period begins.0103

The Gambling Commission and IBAS both count from the first complaint. The Commission's guidance to operators says the whole process, "including any internal escalation, takes no longer than eight weeks from when you first received the complaint". IBAS's terms, at 5.3, let you bring a dispute once it "has not been resolved to the Customer's satisfaction within eight weeks from the date the Customer made the Operator aware of the Dispute", provided you've cooperated with the operator's process.1406

The Commission's page is guidance addressed to operators. Still, note the date and time of your first live chat. If eight weeks pass from that day without a final response, and you've answered William Hill's questions in good time, IBAS's terms let you bring the dispute, even if the Second Opinion stage started later.1406

What to send the Second Opinion team

The help centre doesn't list what the Second Opinion email must contain. IBAS's FAQ says that when you later file with IBAS you should include "your account number, username, and any reference number from the business", and that IBAS may ask for the written final decision or a "'referral code' or 'deadlock number'". The Commission's guidance tells you to give the business "all the information about your complaint, including dates, times and amounts of money" and to keep a copy of everything.0713

Put those in your email from the start:

• Your account details: username and the email address on the account.

• What happened: the bet, game or transaction, with dates, times and amounts.

• What customer service said: the chat date and its answer, in its words.

• What you want: the payment, settlement or correction you think you're owed.

• A request for a final response: ask the team to confirm in writing when its process has ended.

Deadlines on both sides

Two cautions. First, the online terms set no deadline for raising a complaint, but IBAS's FAQ lists "more than a year since you last tried to resolve the disagreement" among the reasons it may turn a case down, so don't wait. Second, IBAS's FAQ says you can appeal "only within 20 days of getting the decision". The appeals page also asks for notice of an intention to appeal within 10 days, so work to the 10 days. The two pages also differ on grounds: the FAQ accepts new evidence, while the appeals page refuses new evidence "that could have been provided earlier in the dispute resolution process".030708

Going to IBAS

IBAS asks you to "Register and complete a Claim Form either online or by request through the mail." The online form is the faster route, it says. Its terms say the process is "free of charge to all Customers", though each side pays its own costs.0906

William Hill's IBAS page, last edited on 27 January 2026, describes a different process: "Customer calls the I.B.A.S. number to request an arbitration form". The same page says IBAS "does not under any circumstances rule on disputes in person or over the telephone." Use the online claim form on ibas-uk.com.02

The contact details for IBAS differ from page to page:

• William Hill's online complaints pages give IBAS as "PO Box 62639, London EC3P 3AS, UK, e-mail: adjudication@ibas-uk.co.uk, phone: +44-020 7347 5883". Its page for shop customers gives the same PO Box with ibasteam@ibas-uk.co.uk.

• IBAS's contact page gives 3 More London Riverside, London SE1 2RE, phone 020 7347 5883 and email ibasteam@ibas-uk.co.uk.

The phone number matches, and IBAS's own email is the one on William Hill's shop page. For post, use the address on IBAS's contact page.010410

IBAS's operator directory, which held 1,293 entries on 7 November 2026, lists William Hill twice: "Williamhill Online (UK Only)", linked to www.willhill.com, and "William Hill Shops". The Commission's register lists www.williamhill.com as the domain name for William Hill's licence account.1115

Is an IBAS ruling binding on William Hill?

Yes, if you accept it and the dispute is worth £10,000 or less. IBAS's terms say its rulings are "legally non-binding on the Consumer but binding on the Operator if accepted by the Customer, unless the value of the dispute exceeds £10,000". IBAS's FAQ puts it differently: "Although we don't have legal authority to make a company pay", it says, "The Gambling Commission requires that gambling businesses must follow our rulings up to £10,000." If you don't accept the ruling, you can still go to court. The Commission's player guidance mentions the small claims court, after independent legal advice.060713

IBAS's FAQ says that "In 99% of our cases, customers receive their agreed settlement", and that it removes from its list any company that doesn't follow its decision, "unless they win an appeal, or the decision is changed in court". The IBAS pages we read give no results by operator, so we can't tell you how William Hill disputes have gone there. Our guide to IBAS and UK gambling disputes covers IBAS's own figures and its rules in more detail.07

When William Hill won't answer IBAS straight away

Clause 10.5.4 of William Hill's terms says it "will not respond to any claims made via our appointed independent adjudication service, IBAS" about bets on markets or events under investigation by a regulatory authority. It says those claims will be answered in full once it is told the investigations have ended. The clause applies to the cases in clause 10.4: an event whose integrity has been reported to a regulator, a bet William Hill suspects is "substantially unfair", and a series of bets with the same or similar selections placed by or for one customer.03

A suspended account is a related case. Clause 11.1 says that if William Hill suspects a prohibited practice, it will suspend the account while it investigates, and "Your funds cannot be accessed or withdrawn during periods of suspension". You can still complain, but expect the investigation to run first. IBAS doesn't take complaints that an account was restricted or closed before you could bet, though it does look at bets or transactions cancelled when an account was closed.0312

What IBAS won't decide

IBAS's page on what it doesn't cover excludes "Claims that a person has been treated irresponsibly by a gambling business", unless there's a contractual element; complaints about the "effectiveness of self-exclusion systems"; customer service; fixing or cheating; and gambling by under-18s. The Commission's player guidance adds that an ADR provider "will not accept complaints regarding a customer service issue, the refusal to accept a bet or your custom." A customer service complaint stays with William Hill's own process, and the Commission says a business "is free to decide who they accept bets from".1213

For self-exclusion, social responsibility, cheating or under-18 gambling, IBAS sends you to the Gambling Commission as a regulatory complaint. The Commission won't settle your dispute: it says "We do not resolve or make decisions on complaints regarding gambling-related transactions." Its register shows one regulatory action against WHG (International) Limited, the company that holds William Hill's licence: a financial penalty of £82,687 decided on 7 August 2025, for a breach of the rule on identifying customers who hold accounts across group companies. The Commission notes that the licensee "self-identified the breach and proactively reported it". That is the Commission's own enforcement and doesn't pay any player.121315

Our guide to the Gambling Commission for players explains what it can and can't do.

Outside the UK, and in William Hill shops

The UK route above applies to accounts registered in the UK. The terms with clause 14.4 also cover customers in Jersey and Gibraltar, while the help centre's route for accounts registered outside the UK is different, so check with William Hill which applies if you live there. For accounts outside the UK, the help centre sets out this route:03010418

• Non-UK accounts: escalate to int_second_opinion@willhill.com. William Hill says it will acknowledge within 24 hours and aim to resolve within 10 days. If it hasn't given a final response within 10 days, or you're not satisfied, you may refer the complaint to eCOGRA. eCOGRA's dispute form lists "Wiliam Hill" and "William Hill Casino Club". Our eCOGRA guide covers that service.

• Republic of Ireland: William Hill aims to resolve complaints within 14 days, and the eCOGRA route "is not available to customers residing in the Republic of Ireland". The pages we read don't name another dispute service for Ireland.

• Shops: speak to staff first, then complain formally by phone on 0117 463 6054, by email to customerhelp@williamhill.co.uk or in writing. If William Hill can't answer within eight weeks, it says it will tell you about your right to go to IBAS.

The UK terms set the law of England and Wales and its courts, "unless (if different) you choose the jurisdiction of your home country".03

How William Hill compares with two other UK operators

We read the terms of the UK-licensed operators we track on 7 November 2026. Three sets loaded with their text:031617

The other four didn't load: bet365 and Betfair returned errors, Betway was unavailable and Ladbrokes' terms page loaded without its text. IBAS's directory has entries for bet365, Betway, Betfair, Ladbrokes Online, Midnite Gaming and William Hill; it has no Unibet entry, which fits Unibet naming eCOGRA. A directory entry doesn't prove which licence or site it covers, so check the terms of your own account.1118

If your complaint is about a withdrawal, our William Hill withdrawals guide covers times, limits and the documents William Hill asks for. If the money still doesn't come, see what to do when a casino is refusing to pay.

What we couldn't check

• When William Hill starts its eight weeks. Its pages tie the period to the Second Opinion stage without saying whether it runs from your first chat or from your email.

• Which IBAS email is current. William Hill's online complaints pages give adjudication@ibas-uk.co.uk; IBAS's contact page and William Hill's shop page give ibasteam@ibas-uk.co.uk. We didn't write to either.

• Outcomes for William Hill customers. The IBAS pages we read give no results by operator, and we haven't tested the process ourselves.