I don't know when I added the China Mobile Traffic Security Package.

The instruction for handling SMS business hall of China Mobile Traffic Security Package is to open KTAXB 10 and cancel QXAXB 10. If the traffic exceeds the package, the bill will still be included in the first-level subject of "Internet access fee outside the package". If you don't know when it was opened, you can directly call 10086 for customer service consultation.