If the refund is not returned on the day of purchase, it usually takes a week or more for the refund to arrive, so the cardholder should pay attention to the time when the refund arrives.
You can log in to Shanghai Pudong Development Bank Credit Card Online Banking to check the refund in my bill. Or call the official service hotline of Shanghai Pudong Development Bank at 400-820-8788 or 02 1-38784988 for consultation.