According to Cai Xi's survey. Com, after the credit card is replenished, the original card cannot be used. When the user reissues a new card, the original card must be permanently lost. After the user activates the new card, the original card automatically becomes invalid. Therefore, the user received a new card, and both consumption and repayment were made on the new card. As for the original card users, whether they have found it or not, they can't use it. Even if someone finds out, there is no risk of being stolen.