In this casino they gave me a bonus of 250 USD and to withdraw they ask you to do a x3 rollover, I have already done it but I also have to verify my account, in the verification they ask for personal information and the last step to complete the verification is to deposit 50 USD, I understand that the deposit is to avoid bonus abuse.
How would a deposit prevent bonus abuse?
You could simply use a different address as I don't think they are requiring you to pay via a credit card!