All credit cards deposit first, then spend. That is, use the money first and then pay it back.
Credit cards are not used to save money.
It is also a waste to save more, and there is no interest if you save.
Withdrawal fee 1%, minimum 10 yuan.
You don't need to exceed 1 minute when you return it.
This only shows that you didn't read the credit card guide carefully when you started using the credit card.