But for the sake of clarification, what kind of abnormalities are you talking about? What did the player do? What is a "Member professional betting style"? Do you have reasons to believe OP is part of an illegal betting crew or that he has insider information or something?
Why not ask OP to publish his last 5 bet slips or so? An abuser is quite easy to spot. Pretty sure it must be on small unknown leagues/matches.
I'll stop my comment if his bet was a simple MU vs City 1x2 bet and the like.
While details are best to be open for transparency for the players' side, it is going to sound like "how to cheat the casino" and "this what makes you caught." Therefore termination based on the breach of rules is used. Common sense should also be used in this instance since the amount in question is always small and it's always sports betting instance.