There is no limit when he explains it to you, but this is not the case. If you really use it to open a card after two or three years, maybe this gym no longer exists, maybe he won't let you open a card, maybe you will be allowed to reduce the time. Anyway, these things are hard to say. You must put them in the contract. I bought your gym card when I had to open it. Secondly, there is no limit to how many months you can apply for a fitness card.