My father's mobile phone has been charged for SMS for several months. His mobile phone is an old man-machine, but he has never sent a text message.

1, check the mobile phone tariff mode first, and some basic mobile phone packages include SMS;

2. If the tariff is normal, you can find a mobile complaint. 10086 the human service complained directly and let it be solved, but he may say it's the hardware of your mobile phone. You can change your card and mobile phone for a month. If it still appears, you can complain publicly. Every city has a mobile branch. Just complain.