Thanks for walking us through the process. LoyceV is right when he says that screenshots can be faked and those images can be manipulated with inspect element to fit blockchain records. But I don't think that's the case here and someone would really need a lot of time and be bored to fake all that.

I am reasonably assured the address in question belongs to Rollbit. And now I would like to see some evidence from the casino that multiple accounts have been found using the same withdrawal addresses. If OP insists he never used more than one account and this is all a mistake, I would like to know what wallet/service he used to deposit that money. If it's one that reuses the same addresses, I should get the same address if I register an account there as well.