I am doing to do something crazy about those 10% bonus hehehe... but need to know before: how difficult is KYC and how many times need to wagering deposit before withdrawing?
I think you need to sign up first and then read the TOS from the casino itself. I'm sure if there's a KYC requirement, it would be based on standards. A just casino will never make their gamblers have a hard time playing on the site, especially when the time comes for them to withdraw their winnings. After all, we are still playing in a crypto casino, and although KYC is required, it should only be very basic. Same with the wagering requirement, you can read it there.
Here's the faq https://metawin.com/faq/ if they want to read something that can possibly answer their question.
and their TOS https://metawin.com/terms-and-conditions/ if people want to read this, they don't need to register since they can simply search it on google and that one will show up. Although its a long text to read but for sure they can learn something especially on what they are implemented if people just read that information before starting to gamble on metawin.
We should expect KYC to be ask since nowadays each casino include this requirement before we can use certain features that restrict us to do when we don't comply to their requirement asked.
the only challenge is we don't know much about the wagering requirements for the promotional offer, which could either be extreme or not. 
