I didn't do anything. What are some short messages about the deduction?

Give you three situations for your reference. First, it is unlikely that a mobile phone is poisoned, because the poisoned mobile phone will generally block the SMS deduction and prevent you from discovering it. The second situation is that others play with your mobile phone or children and accidentally buy some props or monthly business. These are all easy to solve. You can turn it off by surfing the internet or calling customer service yourself, or you can turn it off without going to the business hall. The third most terrible thing is that you bought a brand-name mobile phone with built-in charge deduction service. In this case, you can only change your mobile phone and turn off the charge deduction service. I have seen the mobile phone in the third case. It was cheap when I bought it, and I didn't know I was cheated until I used it. Of course, you didn't specify how to deduct the fee, which is for reference only.