Why doesn't the mobile phone pay the bill if it can't receive the text message?

Case 1, sim card is damaged and replaced; In case 2, please consult your mobile phone service provider about the number setting of the SMS center. Case 3 Some mobile phones have a short message firewall, which stores the short message numbers you don't want to receive in the firewall. This will automatically delete some spam messages and see if your firewall is set to reject all short messages. Situation 4: Some brands of mobile phones will store short messages in the sim card by default. Whether the sim card can store short messages depends on your service provider. Some can store 40 messages, and some can store 100 messages to see if your message is full. If they are full, you can't receive messages. Delete some unwanted messages. Situation 5: Call the customer service center and ask if the SMS service of your mobile phone is enabled. If not, ask them to enable it for you immediately.