really something very shady to be done by some casinos thats why its really always be that ideal on sticking with reputable and known casinos so that you would really make yourself a little bit confident whenever you
do play on a certain site and do knows that you are dealing with the right place and in case there are people who do make up some big wins including you then you dont have any doubts that you would really get paid.
KYC could neither be asked or not but most of casinos now doesnt really ask and pay out directly unless if you are dealing with fiat casinos.