The first one can leave a phone number for the front desk. He bargained when he called. Generally, he talks directly at the front desk, and she will directly lower the price for fear that other members or peers can't hear clearly.
The second and cheapest way is to add a fitness club group and then buy second-hand fitness cards that others don't use. Generally, basic fitness rooms are sold at half price, and fitness cards can be resold in the gym.