Sometime back (few years ago) Torreqebrada hotel (5 star) in benalmadina used to have a spanish dance show on Friday evenings and the ticket also included entry into the casino after the show.
I do not have all the details to hand, but if your search on the internet for the hotel name (if i've spelled it correctly) and give them a call direct they should be able to advise.
If you cant find the hotel details then do let me know and i should be able to find their number for you.