I know that duelbits is one of the highly trusted casinos and I agree that it's the player's responsibility to read the service's To before using it but, to be honest, I've always been against asking for kyc only when the customer requests a withdrawal. It would be better to ask it from the start when the user creates an account or at least be as clear as possible when it will be requested (such as: if you're going to deposit/withdraw more than $xx, you'll need to verify your identity).