Unicom inexplicably charged me the information fee of 6 yuan Unicom. What happened?

The credit fee is not traffic, but SP service, which belongs to the charge on behalf of others. It should be that you installed some software on your mobile phone, or the program that comes with your mobile phone, and requested the services provided by an SP manufacturer (such as designing signatures, downloading ringtones, measuring marriages, which are often broadcast on TV, and now many mobile phones are bundled with malicious software). Every message is requested by SMS, 2 yuan or 1 yuan. You can dial 100 10 to manually block the letter function.