I only sent a text message to my mobile phone, but I didn't surf the Internet, so I deducted 50 yuan. What happened? Find out the answer.

Rejection can be cured. First of all, if you find that 50 is the total deduction, the operator will definitely tell you whether to call or surf the Internet. Then analyze the specific problems. Since you are surfing the Internet and you are not surfing the Internet, it may be that someone else is playing with your mobile phone or upgrading software without your knowledge, and the data traffic is turned off when you are not surfing the Internet. By the way, there is another case where the operator overcharged you because of a mistake, but this probability is very small.