First, I received a warning message, "According to your recent transaction, our bank may downgrade or freeze your credit card." Once the cardholder receives this warning message,

Second, the credit card is abnormal, and the cardholder uses the credit card of Shanghai Pudong Development Bank for consumption. The abnormal situation that the credit card cannot be consumed is also one of the harbingers of the credit card downgrade of Shanghai Pudong Development Bank.

When the above situation occurs, the cardholder should analyze what causes the credit card of Shanghai Pudong Development Bank to be downgraded and make changes in time. If he can't find the reason, he should call the customer service of Shanghai Pudong Development Bank to solve the downgrade problem as soon as possible.