Mobile phones will receive many promotional messages such as Taobao. How to avoid them?

The short message function of mobile phone is of little use, but when it comes to double 1 1 and double 12 advertising short messages, it is estimated that more short messages have been received these days than a year. When you unsubscribe, spam messages will not stop, but will increase. It is said that this is a trap for merchants. Once the user replies, it proves that this number has been used, and the recommendation level has risen.