I mean a simple search with "1xbet scam" or "1xbet trust" would have been enough to see what kind of site they are.
Yet people are still falling for this, it's unbelievable.
When I try out a new site I always do some research about them. Look at reviews, read about KYC and withdrawal times and terms, and so on. Why is it so hard to do that? In real life people are so careful with their cash but on the internet they really like to just throw it away.
Greed is another reason. They get tempted by the epic offers in these scam sites and try to acquire profit asap screwing themselves in the process.
So it is clear the casino took advantage of the situation of the OP, but the OP also allowed the casino to take this advantage on the first place, and while they seem to be vent on recovering that money, I really think it is more important for them to look for the help they need to recover from their addiction, or it will not be long until they experiment something similar again.