I read the Full Conversation between you and the Support Agent. Weirdly, Rollbit Takes that long to check withdrawals.
I would ban/block you as well if you talk like this. You don't have to freak out and react like this when you face issues in online casinos. I believe if you were not rude to the support agent, you would likely get a response from them, and you could continue talking with them. They blocked you just because of your rude behavior.

I suggest you contact them again via Live Support or Email and write your words politely. Suppose you don't get any response from them. Contact their Forum Representative account as they are active in this forum. They continue to maintain their reputation over the years. They are unlikely to ruin their reputation for 255 Dollars.

- John