If you sign a contract with Ping An Credit Card Online Banking, you can replace the old credit card number with a new credit card number; Credit card online banking cannot change credit card number to debit card number. Sign a contract at the counter of Ping 'an outlet, and change the card number of the withholding agreement at the counter of Ping 'an outlet, which is limited to the credit card in my name. You can replace the old credit card number with the new credit card number; But you can't use the credit card number instead of the debit card number. The credit account of one card can be changed into other credit cards.