Mobile phone numbers and credit cards (debit cards) are in different systems. Unless the user cancels the credit card (debit card), or the credit card (debit card) is in abnormal status due to risk control, then the credit card (debit card) debit card) cannot be used. After the mobile phone number bound to a credit card (debit card) is canceled, the user needs to replace it with a new mobile phone number. Since some businesses must use the mobile phone number, the user must bind the new mobile phone number as soon as possible.

In addition, the mobile phone number is mainly used to receive the verification code sent by the bank. Do not tell others this verification code easily, so as to ensure the security of the funds in the card.