Is not the first time I have seen a casino confiscate the user money with the KYC argument, casinos are in their right to do it, but on the users' side doesn't feel fair at all.
Agree on this. I still feel sometimes requiring KYC just to withdraw my balance is unfair even though I already verify my account on different casino. This is why user should understand the danger of Casino with license if they don't want to undergo KYC because ignorance on the ToS will result to terrible loss.
What I don't understand on the KYC part is why the casino still needs to KYC user account if they are just refunding the customer deposit amount and confiscate the profit. This case might be off-topic to the OP but it's good discussion for KYC issues.