Why does my mobile phone turn on the incoming SMS function? Who is responsible for the loss?

It may be the business attached to the card when you apply for it. Call customer service to check it, and you will know. Pay more attention to your own protection, nothing is reasonable, and the monthly fee for mobile phones is the most unreasonable. I bought my own mobile phone. Why? According to their logic, you don't need electricity, do you? If you want to collect money, you have to pay the "monthly fee for electricity meters" haha.