How to cancel the secondary card number of China Mobile?

Taking Henan users as an example, canceling the main and secondary card business: it needs to be handled through the local business hall. Both the primary card and the secondary card can apply. It is necessary to verify the applicant's valid certificate+the applicant's random code and the main card or auxiliary card random code. The main card and the auxiliary card cannot be cancelled within 90 days from the date of handling. Details are mainly in the business hall.

In view of the differences in business regulations among provinces, please consult local 10086 in detail.