1. First, click the "Credit Card Inquiry" button on the homepage of GF Credit Card on the mobile phone.

2. This method requires clicking the "I want to repay" button on the homepage of Guangfa Credit Card.

3. After clicking the "I want to repay" button, then click the "Credit Card Repayment" button on the new page.

4. Finally, you can see the amount owed in the "Current Balance" on the new page.

5. Then on the new page, if there are multiple credit cards displayed, click on the credit card you want to query.