1. Supplementary cards of credit cards can be handled at bank outlets. In addition to outlets, cardholders can also apply through bank official website, mobile banking and telephone. Note that the monthly bill of the supplementary card is included in the bill of the main card, which is also the repayment of the main card holder.

2. The secondary card is relative to the primary card. Every cardholder who opens a master credit card can apply for a supplementary card for other natural persons with full capacity for civil conduct or natural persons with limited capacity for civil conduct who are over 13 years of age (if the applicant for the supplementary card is under 18 years of age, he must obtain the consent of his legal representative).