Dear, first of all, you have to register an account of the public comment group.

The second step is to choose your favorite purchase and then pay by online banking.

In the third step, you will be asked to enter your mobile phone number when purchasing. After successful purchase, your mobile phone will receive a short message, which contains the consumption code, expiration date, package content, merchant phone number and so on.

The fourth step is to call the merchant to make an appointment, and just tell the merchant the consumption code when you arrive at the store.