I didn’t Self Exclude via GAMSTOP but it says I did, who do I contact? Please contact GAMSTOP through their website here or contact them on 0800 138 6518 (8am to midnight, 7 days a week). Related articles I am in the UK but still can’t access my account? What is GAMSTOP? Do you always win from a Box Bonanza? Why can’t I see the games? Can I reopen an account once it’s self-excluded via GAMSTOP?