Why do people always send me one text message and I get two?

The same is true of my mobile phone. There are probably two possibilities for personal summary.

First, it's not the phone. The area where the operator's network owner is located or the area where the SMS sender is located is covered by multiple base stations ... or the signal number of the SMS player or the signal difference in the area where the owner is located.

Second, the problem of mobile phones. In addition to the SMS that comes with the system, it is estimated that there are other software that accepts SMS. Or interfered by other third-party software, such as antivirus software, mobile phone guards, firewall with SMS or harassing SMS interception, this may happen.

If it is not the above reasons, you can try to turn off the reminder in the notification bar in the SMS settings.

In short, this situation has little effect on you. Anyway, you don't charge, and the other party is just money for a text message.

Personal summary, I hope it will help.