I have not been able to find out the exact criteria for receiving a bonus, not a transparent bonus system, which I tried to check by making deposits and bets in casinos and sports betting.
In total, as a result, I made two deposits totaling 10.6 trillion Aidi (bsc) in casinos and sports betting lost 4.5 trillion, so I'm not sure if I lose everything, then I will be awarded a "consolation" bonus.