Spam SMS deactivation

Generally speaking, it is the mobile company's own judgment. They have a system to automatically judge whether the messages you send are spam messages, advertising messages, marketing messages, etc. If the short message you send contains any marketing information or spam, they will think you have this possibility and they will stop your short message function. If you unlock the lock, you must take my ID card to the business hall and sign an agreement. To put it bluntly, you are on the list of key concerns, and you'd better deal with it.