Digital credit cards cannot be swiped directly on POS machines, but only through the payment function of mobile phones and third-party payment apps. The usage method is as follows:

First of all, the user's mobile phone needs to support NFC function, and the user will bind the digital credit card to China UnionPay Express APP.

Then, when the POS machine swipes the card offline, open the China UnionPay Express APP, set the payment method as a digital credit card, and turn on the NFC function of the mobile phone.

Finally, close to the POS machine, make a delivery.