How do banks open SMS reminder service? Is there a charge?

If it is a savings card of China Merchants Bank, please go to the homepage of China Merchants Bank and click "Personal Banking Popular Edition" on the right. After entering, click "Account Management-SMS Service of China Merchants Bank-Function Activation" to apply.

Tips: The charging standard of SMS function: 3 yuan/month/card, free of charge three months before opening (including the opening month) (cancellation will no longer enjoy the discount); Pension account, subsistence allowance account, medical insurance account and unemployment insurance account are free; Sunflower and above customers are free.