1. Take Huawei's mobile phone as an example: open Alipay, click "My" in the lower right corner to enter the personal center, and then click "Bill" to see if there is a bill for repayment of the reserve fund.
2. Confirm the details of the bill and see if it is deducted from the savings card.
3. If it is determined that the deduction is not from the savings card, click "Settings" in the upper right corner, select payment settings, and then select "Deduction Doc".
4. In the order of deduction, put the balance treasure behind the savings card and turn off the automatic deduction and confidentiality-free functions.