These one ?

Have you hear a word, you never know getting a scam before you actually getting a scam. How he can know, there has some strange activity no one know mate. It's most common things in (CASINO Industry)

If you win big or withdraw big, there always have some flag system on casino. Usually, there has some potential (KYC) request something like these the reason is for casino:
- Buying time
- Hopefully, user cannot passed these.