Customer service doesn't know why the SMS can't be received on the mobile phone number.

Hello, 1, I suggest you know the balance status of the number first and judge whether the number is down or half down; The shutdown states include high shutdown, overdue shutdown and loss reporting shutdown. At this time, the short message cannot be received or sent; 2. Check whether the local signal coverage is weak and whether the mobile phone model supports it; 3. Check whether the usage status is normal and whether the short message function has been turned on. If you still can't send and receive after the above troubleshooting, it is recommended that you change your mobile phone/card for cross-testing. If it is still unable to send and receive after the test, users are advised to call 100 10 again to report.