Is there an extra charge for the mobile phone secondary card?

Hello, no need. The cost of the secondary card is paid by the main card.

The secondary card, also called the daughter card, is also an independent mobile phone number, and its number is different from that of the main card. However, the secondary card and the primary card * * * enjoy the package, such as call duration, traffic, SMS, phone bill, and some secondary cards can also have unlimited traffic.

Certain conditions need to be met for handling the secondary card. Generally, the main card needs a package, and the secondary card can be bound.

The advantage of handling the secondary card is that you don't have to pay separately, and the package and traffic are shared with the main card. But the secondary card is controlled by the main card. When the main card stops, so does the secondary card.