Why does my construction bank card charge 3 yuan SMS information fee every month? Who knows why?

At the beginning of opening an account, the bank will give you an additional SMS service. The free period of this service is 3 months. After 3 months, there will be a text message to remind you whether to continue using it. If you continue to use it, it will be the monthly fee for 3 yuan. QXFW you don't need it, you can send it directly to 95533 or take your ID card and card to the bank counter for cancellation.