1. Go to the supermarket service desk. The service desk has a special window to cancel the membership card. You just need to tell the staff to cancel the membership card and then provide relevant information.

2. If you don't want to go to the supermarket, you can also directly call the customer service phone of Jiajiayue Supermarket and tell them to cancel the membership card, and they will authorize you to cancel online or by phone.

The above is the relevant answer about how to cancel the membership of Jiajiayue Supermarket. I hope it helps you.