Will GAMSTOP close accounts I already have or just new ones? Will GAMSTOP close accounts I already have or just new ones? Any accounts you attempt to access matching the details you’ve provided to GAMSTOP will be self-excluded. If you create new accounts after registering, they’ll be excluded as well. If you need any further assistance, please see our contact details here. Related articles How do I close my account? Contact us Does this replace the normal self-exclusion option on a gambling site? I didn’t self-exclude via GAMSTOP but it says I did. Who do I contact? How do I sign up to GAMSTOP?