preparation tools: mobile phone, China merchants bank APP.

1. find the "bank card" option under the avatar in China merchants bank APP, and click enter.

2. in my bank card interface, select the bank card that needs to cancel the SMS reminder.

3. click the "other" option below in the bank card management interface.

4. find the option of "China merchants bank SMS service" in the interface, and click enter.

5. Turn off the SMS service option in the pop-up interface to turn off the SMS reminder charge.