1. As long as you don't accept the service, you can ask for a refund. Before accepting the service, consumers can ask to cancel the contract and ask the gym to refund the corresponding service fee.
2. If you use it for a while, you should negotiate before returning it.
3. Request consumers' associations or other mediation organizations established according to law to mediate.
4. Negotiate with the operator.
5. Complain to the relevant administrative departments, and submit them to arbitration institutions for arbitration according to the arbitration agreement reached with the operators.