So the name of the exchange that OP used is called Tec.Bit.com. I went to their site and started a fake ETH to rubles exchange to see what address I would get from the site. It was a brand-new ETH address that had no previous transaction history. I am also posting a screenshot where I talked with the support of Tec.Bit. I asked them if deposit addresses on their exchange are being reused, and is it possible that a person receives a deposit address that was previously used by a different person. As you can see from the chat, they said no. For each new request, a new ETH address gets generated.

The point of this is to check whether OP could have been unlucky to have used an exchange that reuses crypto addresses because he said he never played on Rollbit before. If that was the case, it could be possible that he was asked to deposit his tokens into an Ethereum address that was previously used on Rollbit by someone else who got banned/limited. Judging by the reply of the support agent, that can't happen.