1. Open the AOFEX official app and click the icon in the upper left corner to enter the user center.
2. Click "Payment Method” to enter the binding page.
3. Select payment method you want to bind.
4. If you want to bind a bank card, enter the binding page and click "+".
5. Follow the prompts to fill in the informations and click "Save".
6. If you want to bind other payment methods, please refer to the tutorial above.