Sure, if you're on gamstop then I'd be careful and choose casinos where you can play without incurring any penalties.
Of course, there are plenty of casinos without a UK license that allow players to play there, but you should always be aware that it can be difficult to get help if problems arise. I guess that's why they try to bypass some things so that they don't get penalized for it, because you must be aware that not every casino can be regulated in that country, because there are so many of them.
So choose wisely.
However, even if you play in such a casino, you shouldn't have a problem withdrawing money if you are not from a restricted country, so I wouldn't see an issue with that in particular, since you can register in such a casino. 🙂
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