Most providers & casino restrict any kind of arbitrage.

There also another factor, If you has been flagged on other casino by their provider sportsbooks. You will be flagged everywhere, If the casino using the same sportsbooks. That's why, there has some case a user getting flag by provider (the provider can stored your data, to aler to the casino if these player playing on other casino using the things has been restricted.

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Basically, just a same like Blackjack Player who can count card...... the casino will alerted each other. There has some player (advantage player) are currently playing around, and mostly you will get back off

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So, once you opened a case and the case is sportsbook. I'm not quite surprise, is always mostly 4 of those points, I'm casino player fully on casino and never find any trouble. But seeing by your history, there has some repeated cycle for you in different casino.