How should the secondary card be filled with traffic?

There are several ways to charge the secondary card:

1. Log in to China Mobile official website and modify the business flow you want to use in the package, which will take effect the next month.

2. You can also send a short message to "10086" for recharging. With 10M traffic superposition package, you can send short messages "KTSJLL3" to 10086 when you open 3 yuan package, and "ktdj 10" to 65438 when you open 70M traffic superposition package with10.

Precautions for using the secondary card:

China Telecom's supplementary card policy is based on Tianyi exclusive package. In the family package, one primary card can handle up to four secondary cards. Its biggest advantage is that there is no charge for supplementary cards, and each supplementary card is rented from 0 yuan, which means that the whole family only needs to pay for one package. Moreover, the traffic of Tianyi's exclusive series of packages is not capped, so you don't have to worry about bearing extra expenses after exceeding the package quota.