Is the SMS service fee of CCB legal?

Attention, everyone, the SMS service of China Construction Bank has been secretly charged. My mobile phone secretly deducted a few cents last month and didn't accept any information service! ! ! At the beginning of this month 1 20 cents a day was deducted, which was so fucking cheat people. I want to complain and cancel the service of CCB. . . . My mobile phone has paid the SMS service fee in 30 yuan for one year, and it will be deducted every month. This is not a fucking good thing. China Construction Bank.