How to deal with ICBC's monthly mortgage reminder SMS?

ICBC's express service charges 2 yuan/month, which can be opened in three ways:

Bring my ID card, bank card and normal mobile phone number to the bank counter to submit an application for opening ICBC messenger service. You need to provide your own ID card, bank card and mobile phone to receive SMS reminders. It will take effect after the success of the counter staff, and you will be notified of the successful opening by SMS;

After processing, inserting the card and entering the password through the self-service terminal of ICBC outlets, select ICBC Messenger Service-Select Open (check the Messenger Usage Agreement)-Enter the bound mobile phone number-Confirm with verification code-Open successfully.

Log in to ICBC's personal online banking, enter ICBC Messenger-Messenger Service Agreement-Use Agreement-Open Service Agreement-Open/Modify/Cancel-Select-Open-Customize Messenger Service-and confirm the success of opening.