Sisters of Unicom, I use the secondary card to send messages to others. Why is there a record on the main card?

Hello, if it is Unicom's primary and secondary cards, call details, SMS/MMS details, Internet details and other details, the general self-service channel supports self-service inquiry of the secondary card, and the primary card cannot log in. Due to the different package types of primary and secondary cards, the query business rules are also different. It is suggested that you contact the local manual customer service for consultation, which is subject to the local Unicom policy.