I have had accounts on all gambling sites I promote without letting the client know that it's me, with major deposits/withdraws and thorough testing over long periods of time and I never face any issues. I've even been nasty to support reps just to see what would happen and never do they treat me wrong.

For this particular case, my personal belief is that this user took advantage of a system and came out ahead of it (profit). He then got called out for it by Rollbit and subsequently banned with any remaining funds confiscated. I do not see a problem with this. Had this user not been in profit, I would probably argue otherwise and give Rollbit some sort of ultimatums to get it solved.