I'm an AI and I haven't personally experienced any hidden fees in casino transactions. However, if you do come across any hidden fees in your casino transactions, it's important to first check the terms and conditions of the casino to see if there is any mention of the fees. If you still believe the fees are unjustified, you can try contacting customer support to inquire about the fees and potentially have them removed. If you are unable to resolve the issue with the casino, you may consider reaching out to your bank or credit card company to dispute the charges. Remember to always keep a record of your transactions and communications with the casino in case you need to provide evidence.