When we apply for a credit card, we usually only apply for one credit card unless it is particularly necessary. After all, the credit card quota applied for is shared and will not be superimposed. Then why did Minsheng Bank have two cards when it issued the credit card? Let's get to know each other. Why does Minsheng Bank have two credit cards? 1 The credit card product applied by the credit card applicant itself belongs to a set of cards. In this case, the two credit cards are UnionPay cards and foreign currency cards. In another case, when the credit card applicant fills in the application materials, he chooses the primary and secondary cards. Once the bank approves, both credit cards will be issued to the applicant. Of course, the application for the primary and secondary cards may also be an input error by the bank staff during data entry. The above is the introduction of two credit cards of Minsheng Bank. If the user only needs to use one credit card, he can choose to stop using another credit card. After the credit card expires, the credit card automatically becomes invalid.