Are the SMS notifications from those banks free?

(China Merchants Bank) 1. On April 30th, the Bank launched a new notification service function, which can set personalized cards (including IC cards and M+ cards, etc.). ) remind the starting amount, whether to display the account balance, etc. 3 yuan/Month/Card is free for the first three months (including the opening month) (no discount will be enjoyed after cancellation). In addition, sunflower level and above, 2. Customers who have opened the old SMS notification service before can still receive the original notification service for free if they don't open the new notification service.