While surfing on the Instagram I came across a video, where casino refuses to cash out $25k winning even after providing ID. Here is that
short video. A person has won $25k in gambling, but lady at exchange refuses to change chips into cash. If that person would have violated rules, dealer would not have given him chips, but since he has chips, he has won fairly.
If such situation happens to you, how would you react? What a person even can do in this situation? Go away with chips? Give chips to someone else and let him cash out? Contact lawyer?
Call the police or lawyer. I think that you must such problems in a moment. If you leave casino, you decrease your chances to get money back. You must fix the situation and got an answer when and how you can get you money. It would be better if somebody can protect you(police) and somebody can fix on the paper situation(lawyer). In such way you get good witnesses and a document where the situation is fixed. I think that it would be enough.