If such cases occur, then of course having a large balance in a gambling site or platform will be very risky and users also must have doing serious consideration if they want to do so.
At all times having a very large amount of bankroll on a casino site is risky because you might've not known the mistake that you have made in the past and it can be used to close your account. Possible you opened an account before but didn't remember and now you have a new account which is punishable by the terms and conditions of most casino. The mistake mightn't be from your side and it puts your account at risk of getting closed too. Any amount that you're depositing on a casino doesn't need to be much for you to handle losing it as when it doesn't go through lost from gambling, there might be other reasons why you lose it. To protect yourself from using it for gambling, it's also important to not have excessive bankroll. It's going to have an impact on the way you gamble. Only have the quantity that you can manage and it gives you a clue on when to stop.
Losing money in a gambling case is certainly something that has definitely happened, but to lose money other than losing, maybe it is the freezing of an account that previously made a mistake unknowingly. In addition, I think there are indeed some people who experience where their accounts are frozen by the casino for no reason, but what is clear is that the casino does this not without reason because of course the casino also has a reason why they close some of their customer accounts. The bad thing is that the casino may be cheating.
Apart from that, we should only put money that we can afford into gambling, because with more frequent losses, it is possible that it can make us lose a lot of money if we put in more money than we can afford, it is very lucky if we can get a big win but something like this is very rare and only a small number of players experience it because many are definitely players who experience defeat. This is not the bad side of gambling, because basically this is a business that is certainly developed and maintained because the profits can be said to be long-lasting, especially if the casino can make many players comfortable, that is an advantage for the casino.