Share any evidence you have to support your complaint. Tell the gambling business all the information about your complaint, including dates, times and amounts of money. You can also use the free online tool Resolver that gives advice to customers and can help you with submitting a complaint. For example the betting shop, arcade, bingo hall or casino.
You can also complain in person and ask for a copy of the complaints policy at the premises. You can find how to contact the gambling business and view their complaints procedure on their website.
Check any terms and conditions that are linked to your account or your gambling transaction.