I didn't surf the internet, download anything or watch a movie. Unicom sent a traffic message saying that I used more than 300 traffic. What happened?

China Unicom's deduction fee has been transparent. If you have any questions about the traffic usage, you can use this number to log in to the online business hall/homepage, and click "phone bill inquiry" > "usage inquiry" > "Internet traffic" to inquire about the usage and remaining situation of mobile Internet traffic in the current month.

If you still have any questions after the inquiry, log in to the online business hall/homepage and click phone bill inquiry > bill inquiry > detailed list inquiry > internet traffic, and you can inquire about the detailed list of mobile phone internet access within six months. You can also contact Unicom's manual customer service for verification.