You can call the credit card customer service hotline for consultation or check the credit card bill, because the secondary card and the main card are the same bill.

For example, there are three ways to query the credit card bill of China Merchants Bank:

1. Log in to China Merchants Bank official website and click on the credit card-there is a login system on the right-and then log in-click on the account status-click on the monthly bill query.

2. For telephone inquiry, call the China Merchants Bank Credit Card National Unified Service Hotline at 400-820-5555, and follow the prompts to manually inquire about the credit card consumption of China Merchants Bank. This way is the most direct, but you can't make phone calls often, you need to pay the phone bill, and the collection is not intuitive enough, so you can't see your every consumption at a glance.

3. Check the statement. China Merchants Bank will mail the statement to the cardholder or send an electronic statement every month. Although you can see every consumption in this way, you need to wait a long time, which is not conducive to individuals to arrange their own financial plans.