I feel Review the casino's policy like Each casino has its own policies and procedures for handling disputes or grievances. Be sure to review these policies and procedures, so you know what to do if you have a legitimate complaint. Also Keep recordsloke f you have a legitimate claim, be sure to document as much as you can, including the time and date of the incident, the machine's location, and any receipts or proof of payout. The more information you can gather, the easier it will be to resolve your complaint.