This doesn't sound like a very sane or sensible approach to gambling at all. Most casinos have this sort of offering these days, as promoting responsible gambling is a one of the best things they can do to keep politicians happy and not ban them. However there are so many offerings out there, that even if you put a stoploss on your gambling at one, if you're happy is that impulsive and uncontrolled then you can start depositing at another one within seconds. Unless you pick one that has the stoploss figure you want and then ban yourself from all the other major casinos. Really you just need to get a grip on your spending because it sounds like you are using a very poor strategy right now.