How to cancel my trumpet number?

If you need to cancel the main number, you need to cancel the Wo trumpet first.

Tips: When users apply for the main number sales number in Unicom business hall, they can cancel all the small numbers bound by the main number at the same time. If the main number is sold or transferred in Unicom business, the corresponding wo trumpet has not been online for 3 months, and the corresponding wo trumpet can also be cancelled.