Can the Postal Savings Bank Card only open social security messages?

"You can't directly open the SMS reminder service on your mobile phone; Opening SMS reminder service requires my ID card and bank card; Users who don't have a bank card can go to the nearest bank outlet, open an account with their ID card, and then the teller will ask their mobile phone number when they handle it, which is the default SMS reminder service. If you have already applied for a bank card, you still have to go to the counter, bring your ID card and directly handle the SMS reminder service. "