The specific policy and method of card withdrawal may be different due to the location, type and signed contract of the fitness card. Generally speaking, if you want to return the card, you can refer to the following steps:

1. Read carefully the card withdrawal clauses in the fitness card contract you signed to understand the requirements and procedures for card withdrawal.

2. If the contract stipulates that the card can be returned, prepare the necessary materials within the specified time limit, such as valid certificates, used fitness cards, invoices or payment records.

3. To submit an application in the way stipulated in the contract, it may be necessary to fill in relevant forms or submit an application for card withdrawal to relevant departments for review.

4. If it is approved, you will receive a card withdrawal notice and make a refund or other treatment according to the process in the notice. If the approval is not passed, you may need to further contact relevant parties for further processing.

It should be noted that there may be some consumption traps in some fitness card contracts, such as very strict requirements for card withdrawal, high card withdrawal fee, little or no card withdrawal, etc. Therefore, when you apply for a fitness card, you are advised to read the contract carefully, understand your rights and obligations, and carefully consider whether you need to buy a fitness card.