You misunderstand me. The casino is not involved with his debit card transaction. If he wants to assert some rights about his deposit with the casino, he needs to do that without regard to how the bitcoin (or whatever the intermediate currency) was obtained. He's in for a tough road. A lot of these online casinos are indeed little more than scams. I got burned (fortunately only my $50 investiment and the additional money I had "won" on one of the internet poker sites back in their glory days).