After the petty cash arrives, pay back the credit card bill; Unused consumer reserves will offset new credit card transactions. In other words, petty cash will be used first after it arrives, and then the credit card limit will be used after it is used up. This reserve fund is only used for daily credit card swiping and online payment, and can't be withdrawn, transferred or recovered.
The amount of the reserve fund to be repaid is included in the credit card bill and can be repaid according to the bill.