Does the subject want to ask, "Does it matter if the phone number of Pufa Credit Card keeps changing?" No, it doesn't matter if the phone number of Pudong Development Credit Card keeps changing. The reserved mobile phone number of Pudong Development Bank Card has been changed. Users can modify the reserved mobile phone number. There are two ways to reserve a mobile phone number: one is to handle it at the counter and the other is to handle it by telephone. If the mobile phone left by the cardholder when handling the credit card has been replaced and needs to be replaced, the cardholder can hold his ID card.