I don't enjoy admitting I am a degenerate with no self control, I think most guys who request a self casino ban eventually ask for it to be removed, but its the casino's responsibility not to do so after the process of requesting a permanent casino ban has been completed.
I am sorry for your situation. It seems you realize that you have a problem and that is a great first step. The next step will be accepting personal responsibility for your actions. I don't know if a casino is required by law to ban users at their request. That seems a bit far fetched, but I'm no expert. If that were the case, should cigarette companies refuse to sell cigarettes to buyers that are addicted to nicotine? Should we be burning Starbucks down because they sell coffee to repeat customers? I don't think so. Should Stake.com have left you banned? Probably. Do you have a valid complaint against Stake.com? It doesn't appear so. It appears you lost a lot of money from some bad bets and are now angry about it. I don't think you have a valid complaint. I also think had you won money instead of lost, you would be happy now. If how you look at someone's actions is dependent upon a random outcome then I think you have other problems then this.
I am curious where someone with these types of issues handling money would get 13 BTC.