You mean Rollbit created an account for you? Or you already have one before receiving your first Bonus?
I’m sure Rollbit have a valid reason of restricting your account, are you able to contact the support and clarify this issue?
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.
The Op is very lucky and I don't understand what he is asking from the casino or he is encouraging other accounts to go through the way he went, I'm sure the casino will be on the look out for such violation.
Another bigger question to the ops is, why didn't he contact the casino when he received such unusual bonus from them, and from his explanation he receive such bonus twice and have managed to withdraw 50k-80k that is huge profits enough for the ops, and if he wanted to get any clear understanding on the terms and conditions on the bonuses if there be any then he should have first of all reached out to the support team of the casino to get the template for the terms and conditions of the bonuse before he started gambling with it.
So its still a win-win for the ops and I suggest he move on, but anyway, he already stated that the thread was meant to just warn others, who may receive such an offer from the casino.