Warm messages need attention?

This is sent by Fetion, which is generally no problem. Similar ways to cheat money are to induce you to call back to the toll phone to cheat money. This message is that Mobile is promoting data services, and it should be convenient weather, 3 yuan/month. As long as you don't return, it's nothing. Fetion is a mobile service, sending short messages through GPRS traffic, without spending money, only taking internet traffic.