The proper procedure in the many jurisdictions that i am familiar with is to immediately report the casino to the Casino Control Commission [or whatever it is called] - on the casino floor. There should be a "gaming commision" podium/counter/office/booth, etc. If you cannot find it, ask any security guard.
Many years ago I had an Atlantic City Casino deal me cards that were not "washed" prior to their being put into play. Little did I know - I was a newbie. I got crushed of course. A day later I found out that I could report them. I went to the on-duty New Jersey Casino Control agent, who promptly informed me that they will run back the tapes and if i am correct the casino wil be fined $10,000 per occurrence. Problem was I could not recall the hour, or the pit that I had played in, no less the table. The agent added that if I had simply come to them immediately, they would have little trouble finding the proper taped evidence.
The next event was in another A.C. Casino. I had just been "half-shoed" and needed to cash out; when the cashier short-changed me several thousands of dollars ! I angrily refused to move from the cage window until a Casino Control Officer arrived. They ran the security tapes back and the short-changing was corrected.
In some states the casino is on Indian Reservation land and depending upon the "compact" agreed upon with the state, casino problems may be handled by the State Police, the Tribal Gaming Council, etc. Basically it is always "caveat emptor" for you regarding ANYTHING that occurs on sovereign Indian Reservations. Not that long ago one of the California Indian Casinos was caught using marked cards against the hapless patrons. They actually admitted it, but refused to reimburse losses or take any other actions beyond saying that they would take steps to see that it would not happen again."
So ... what we all want to know is - where did this take place?
p.s. As a footnote I would like to say that the patron has absolutely no right to examine the cards upon demand. This is because they are given the opportunity to witness the compulsively careful (time-consuming) examination of both sides of each individual card. Normally casinos will do this in a hand-held game every two hours, although the time period can be much longer if it is a face-up game where the players are not touching the cards. The casinos do NOT need to have patrons present to witness this procedure, although I think that that should be obligatory.