Does the questioner want to ask "Why is the credit card limit not restored after Pinduoduo's refund"? Refund processing time, credit card billing cycle.

1. Refund processing time: Refunds take a certain amount of time to process and take several working days to complete. Wait patiently for a while to see if the credit will be restored after the refund processing is completed.

2. Credit card billing cycle: The credit card limit is calculated based on the billing cycle. Refunds occur within the current billing cycle, and the credit limit will not be restored until the beginning of the next billing cycle.