Repayment of main card or supplementary card; There is no need to pay the bills separately. The main card and the auxiliary card of the credit card, the money spent, are all included in the main card account, and both the main card and the auxiliary card can be paid back when repaying.
All transaction funds of the secondary card and corresponding interest and expenses are credited to the account of the primary card, and the cardholder of the primary card bears all repayment responsibilities; The main cardholder and the supplementary cardholder with full capacity for civil conduct shall be jointly and severally liable for the debts owed to the bank, while the supplementary cardholder with limited capacity for civil conduct shall only be liable for the debts incurred by the supplementary card held by him.
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).
Extended data:
Each credit card master card can apply for up to two supplementary cards (at the discretion of the bank), and the master card holder has the right to request cancellation of its supplementary cards. The credit limit of the secondary card shall be designated by the cardholder of the primary card independently, and shall not exceed the credit limit of the corresponding primary card; If the cardholder of the main card is not specified, the credit limit of the auxiliary card is the same as that of the main card.
All transaction funds, corresponding interest and expenses of the secondary card are included in the account of the primary card, and the cardholder of the primary card bears all repayment responsibilities. However, the primary cardholder and the secondary cardholder shall be jointly and severally liable for each other's debts.