Legal analysis: it is not illegal to pre-sell fitness cards. However, if the operator fails to inform the consumers who have paid the advance payment in advance and make proper arrangements, fails to provide goods or services as agreed, and cannot get in touch with them, it is regarded as fraud.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 605 Where the subject matter is not delivered within the agreed time limit due to the fault of the buyer, the buyer shall bear the risk of damage or loss of the subject matter from the time of breach.

Article 606 Where the seller sells the subject matter delivered by the carrier in transit, unless otherwise agreed by the parties, the risk of damage or loss shall be borne by the buyer from the time the contract is established.