Mobile phone group sends short messages to change the number.

It is best to turn off the data, this kind of push information is a waste of traffic. This is something that you will bring with you in some downloaded software, which is basically something like advertisements. The simple way to organize this kind of thing is to use the 9 1 assistant to intercept it. It used to be one block at a time, but it was very laborious. Later, using 9 1 assistant was much better. I hope I can help you.