What is the basis for turning off SMS?

This is in response to the call of the country, information security and so on. The short message you send must be regarded as spam after someone reports it behind your back, so the mobile company will shut down your short message service. After opening it, pay attention to texting. If you are reported again, you must sign an agreement in the business hall, and then reappear, and the SMS function will be closed for a long time.