Help stopping gambling site from debiting my bank

you can always go to the bank and do a stop payment form usually around 25 here at my bank and they will block the payment to the source but it does cost you a little $....good luck

I'm not well versed in the way a gambling site behaves but you might want to consider placing a freeze on your account, or even closing it out and opening a new one. You'll need to speaki directly with your branch manager to do that.