Take it easy buddy, you don't have to already conclude that you were scammed by Rollbit, stating this in a manner you did  already gives reader the impression that you have accepted the loss and moved on, and if that be the case, then I wonder why you are complaining here, or the reason for the thread you created.

Rollbit remains one of the most reputable casinos we have on this forum (atleast, until confirmed otherwise), so you should trust that what ever case you have with them would be resolved amicably if you are patient and follow due process in your appeal or complaint.

You have already started your scam accusation thread I believe, I have not read it but will do as soon as i post this comment, you should allow the team to look into your case, and understand that every big casinos do fall out with customers due to monetary issues like yours, so believe that your issue will be looked into, and if at all Rollbit are the ones trying to cheat on you, the forum will definitely stand with you and Rollbit will have no choice but to refund you as needed.