People should be more patient and not be too aggressive in calling a casino a "scam" because the service found an issue that probably could be something illegal in some instances. Because there is some probability that a user could be using the information/identification/documents of his/her relatives. The casinos are merely protecting their service, NOT to scam people.
It goes both ways though. Imagine getting your account banned when you did nothing wrong at all. That would make almost anyone lose their shit which is why staying patient in such situations is easier said than done.
Best way to deal with such situations in my experience is to go punch air and yell privately, but deal respectfully and politely with the site since the ball is in their court.