Some casinos advertise themselves as KYC-free, but the moment you win big, that’s when they suddenly put all the requirements on you. And it’s not just basic KYC, they ask for heavy documents like passports, and some even request bank account details.
This is common on crypto gambling sites and it is not when you win big but when you win. They make KYC compulsory but they will allow you to deposit without KYC but you will not be able to withdraw if you win until you get verified. This act is dubious in my opinion. Stake is not like that which is the reason I like the gambling site.
You will be required to get verified before you will be able to deposit.But if you mean the gambling site only do that when you win big, maybe it is part of their ToS.