I've just been waiting for nine days. Tomorrow will be 10 days. That's a long time. Especially for a young casino that wants a good reputation.
Did they provide any new update regarding your case? This is very important since I was in a similar situation with another crypto sportsbook who provided me new updates on a regular basis which made the wait easier.
As @holy mentioned, if you haven't done anything illegal at all, you will receive your funds since Shuffle is a lot more popular than you think and they wouldn't want to jeopardize that.