Can you show us one more thing? OP never mentioned his ETH address in his post but you did. Can you show us the entries in your system where it shows that two (or more accounts) made withdrawals to the 0xd671f6bbc4998e24b575ff8178715ffb96674d89 address that you linked to? Since OP claimed that he never had any other accounts and this was the first time he played at Rollbit, that would show that he is lying if we have multiple accounts making withdrawals to the same Ethereum address.

While you are at it, can you also show a screenshot/log that proves that 0xcbd6832ebc203e49e2b771897067fce3c58575ac is Rollbit's hot wallet where OPs funds went to?