Usually, the card faces of the main card and the auxiliary card are the same, but the card faces of a few card types will be different. The secondary card can use the standard card surface, while the main card is the exclusive card surface of a certain card type.

Whoever issues the bill is the main card.

You can also check the application progress. During the application process, the name of the main card or auxiliary card will be displayed here.

If it takes too long to remember the progress of the application, you can also call the customer service hotline.