True story, I once went to a casino (Tunica, not Vegas) and lost $150 fast ... went to the atm to withdraw $100 and got 5 hundreds instead of 5 twenties.
Needless to say, I played the ATM slot machine several times that night. We walked away with $1500 cash (80% profit). A few weeks later ...
bank (on phone) >> uhmmm, there's been a mistake and your account is being credited $1200 for money you took out @ xxxxx's casino
erect >> bullshit, I didn't notice any extra cash flow when I got home
bank >> we got a call from xxxxxx's and they have record of it & video
erect >> are you my bank or theirs?
bank >> your's
erect >> why are we having this conversation? don't take anything out of my account or you'll lose my business forever and if they have a problem with their accounting have them get with me directly. You do not represent them ... grow a spine.
I never got a call from the casino and never paid the money back. I remember having an elaborate story ready for the papers about how it was a scam they set up to make people think they had free money so they'd go spend it all, then charge them for it later.
By far the best I've ever done at a casino