My mobile phone is used by Beijing Hongxun Meng Xin Communication Technology Co., Ltd.

If that's what you're talking about, it's illegal to collect fees. You can't do what they say. That's no different from robbery.

First of all, you have to find out whether you have never had business contact with it, such as the phone being touched by others, being called to service by friends and so on. You can go to the relevant mobile phone business hall to get the records.

If such a thing never happened. You can protect yourself with legal weapons. You can complain like 3 15, or you can bring a lawsuit to the court. If the means constitute a crime, you can also report it to the public security organ.