1. First, make sure that the WeChat account has been bound with an effective payment method, such as bank card or WeChat payment balance, open the Fat Goose Gym application and select the goods or services you want to buy.

2. Secondly, on the settlement page, select WeChat payment as the payment method. After clicking the payment button, you will be redirected to the WeChat payment page, where you can confirm the payment amount and payment method.

3. Finally, enter the WeChat payment password or use other verification methods to complete the payment. After the payment is successful, you will receive a confirmation notice from WeChat and return to Fat Goose Gym to apply.