I wonder why OP would bother contacting support for his ban account because he has already profitted from the casino in question and I doubt if they are ever going to unban that account because they are going to see him as a scammer as he beat their promotion. If it were off line, he probably would be visited by the casino because he either took advantage of the loop hole on the casino. Although, it is the casino who have allowed themselves the laspes as they didn't realize early enough on what was happening.
This wrong interpretation on the OP case. He doesn’t cheat at all by completing the promotion because he follow the rules and just beat the casino with their own rules. He might be tagged as user that is restricted to join the promotion instead of being scammer because he doesn’t commit any violation against the ToS.
I just believe they look at the ROI and saw they lost too much on me and then came up with such excuse. I just want to warn others who might be in profit to take your money out, and only deposit money you wont cry about if they confiscate. Rollbit is not transparent, and they can always close your account without letting you know why.
Just move on, we all knew that casino doesn't want players to be in constant profit. You are already lucky to withdraw your profit. Casino doesn't scam you any amount. What's the sense of giving warning to others if the casino doesn't owe you.