The real question.
42 Million USDT, It's a big money. My only thinking, If these happening since it's from the progressive jackpot (It's the money paid by the provider and sent to the user at that casino) or if the fund for payment it's from the casino it self.
As a normal user, I believe the user are gonna need passed fully verification maybe Level 3 or maximum Level 4. Also, people are gonna to think do the casino have a bankroll to pay that amount + It's actually have some transaction proof the casino pay these and user make some withdraw.
That's was most question and mystery from other user, while we are get these from online gambling.