If the store closes down or changes its address, the consumer has the right to ask the merchant to return the balance of the prepaid membership card. If the merchant continues to operate and the consumer unilaterally requests a refund for personal reasons, he can negotiate with the merchant for a refund. If negotiation fails, it is suggested to complain to the market management bureau.

Legal basis: People's Republic of China (PRC) Consumer Protection Law.

Article 40 If consumers' legitimate rights and interests are damaged when purchasing or using commodities, they may claim compensation from the sellers. If the seller's compensation is the responsibility of the producer or other seller who provided the seller with the goods, the seller has the right to recover from the producer or other seller.

Consumers or other victims who suffer personal or property damage due to commodity defects may claim compensation from sellers or producers. If it is the responsibility of the producer, the seller has the right to recover from the producer after compensation. If it is the responsibility of the seller, the producer has the right to recover from the seller after compensation.

When consumers receive services, their legitimate rights and interests are damaged, and they can claim compensation from the service providers.

Article 46 If a consumer complains to the relevant administrative department, the relevant administrative department shall handle the complaint within seven working days from the date of receiving it and inform the consumer.