Dear complainant,
Thank you very much for contacting us. We are sorry to hear about your problem. Unfortunately, we don't have a branch dealing with sports betting yet, but we can suggest three websites which do:
https://www.bookmakers.bet/submit-a-complaint/
https://www.top100bookmakers.com/contact-us/
https://www.sportsbookreview.com/sportsbook-complaint/
I hope they will be able to help you with your issue.
Please understand, we wouldn't be able to advise you correctly as we don't have enough insight on sports betting, and we wouldn't be able to judge competently all the pros and cons. Therefore, your complaint won't be published on our website.
I’m truly sorry we couldn’t be of more help.Thank you for your understanding.