And perhaps, playing in the casino is no problem with your activity?

Sportbet case it's always tricky, every user I know or facing some case it's because mostly sportbet users. A few scenarios are always:
- You getting flag by their third provider for your activity
- Broke term & condition
- Avoiding betting limit
- Arbitrage
- Bonus abused
- Some other factors.

This one it's always the mostly from the case, especially for people who are betting in sports. Not only here but in another casino too. However, some other casinos might be just block/terminated your account without any further update or refund.

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Do they have ability to refuse the service for some people or you ? the answer yes. It's same happens on real casino, while people or user who are playing blackjack with card counting (count the card with his head) even we all know these is not illegal.

But, mostly the casino will stored your identity, picture and other. You will get back off by them, and they will tell you for prohibited your activity for playing blackjack (some casino allowed you play other game except blackjack. But mostly, they will back you off and refuse the service otherwise you will get charge by trespassingto their casino.