Before your old card expires, the relevant bank will contact you and issue you a new card. After receiving the new card, you need to activate it. After the new card is activated, the old card will be invalid. Then all your past information, including credit limit, will be updated, and the limit, number of copies and personal information on the old card will be transferred to the new card. If the new card is not updated, the expired card will be locked and cannot be used!