How to charge the mobile supplementary card?

The charging standards are as follows:

Function fee: 10 yuan/month. The supplementary card will receive 100M domestic general traffic every month; charges outside the package: are based on the charges outside the main account.

The primary and secondary cards can enjoy the voice, data traffic and other resources within the primary card package, and local calls between the primary and secondary cards are free, allowing multiple people to enjoy the same package. Through the primary and secondary card products, users’ mobile communication expenses can be reduced by about 50%.