False transactions were sent via text messages to Shanghai Pudong Development Bank credit card. The abnormal transaction prompts from the Pudong Development Credit Card SMS are mainly caused by the improper use of the credit card. The cardholder does not use the Pudong Development Card in accordance with the credit card regulations, resulting in the credit card being risk controlled, or even being detected by the system as arbitrage. The Pudong Development Bank system will send a text message to inform the holder. If there is an abnormality in the cardholder's credit card, and the cardholder does not stop immediately, the system is likely to freeze the Pudong Development Bank credit card or even block the card.