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Yes, I'm saying you can play with the casino who don't have any problem with your activity.
Basically, they are refusing the service to you based on seeing the activity. At least you got the money back, and without any being held compared to other casino. Sportbet or any player with an advantage is always getting restricted (especially, arbitrage and other factor I mentioned in a previous post).
Just take a look:
https://www.youtube.com/watch?v=I7lsxlZmEWc&t in real casino. Player who can card counting, getting backoff by casino and they refusing the service to him. Same happens for your case, they are refusing the service to you.