How is it that the mobile phone can send text messages but can't receive them to check the balance?

There are several situations: first, the signal there is not good, second, your card is not good, and the received information is not good, third, there is an error in the mobile (if you are sure) system, and fourth, the short message is sent incorrectly, which should be an incorrect reply, so this is not considered! You can call the service phone to tell them about the labor service! !