First, if you look at the total repayment amount of the latest credit card bill, then this amount will not change because of the refund.
Secondly, some bank refunds are not considered as repayment, which means that you need to pay back the amount of the bill you have already paid, and the refunded money will deduct the debts you have not paid back.
Third, Taobao shows that there will be a time difference between successful refund and bank refund. I suggest that we can see if there is a breakdown of this amount in a few days.