"if he chose not to play on that time he "requested" for self-exclusion without getting approved."
Please keep in mind man I waited 20 days. Thats unreal.
Okay, it's really a frustration for the casino to not let you self-exclude. But at the end of the day, it's still you who made the decision to play. So i can only say is deal with it, blaming the casino for your actions is irrational. And they will really not probably help you since they get your fund already as they usually do to their other users.
Some casino have this self exclusion feature easy to operate, here you need to contact the support to apply for it. However, it's still not right to blame the casino for the loss, although I don't like the reputation of 1xbit but at this point, OP is so irresponsible to put the blame to the casino on why they didn't grant his request that resulted to losing more money.
I think there's no room for addicted gamblers here because they are the reason why the gambling industry is ruined, they put a bad image to the industry because they feel like they are being the victim when in reality it was their fault to not exercise the responsible gambling.