The mobile phone didn't know how to download the software, and then a short message came, saying that I had successfully ordered something and deducted the money.

Did you play any games, or did you find any uninstalled software? Some softwares induce you to click to buy. When downloading software, read other people's comments before downloading. You sent a text message before you understood it, and you haven't recorded it yet. When you can connect to customer service, check invoices, use service passwords, or use software for self-inquiry, most of the money? If you don't come back, pay attention next time you play games.