Joke Collection Website - Public benefit messages - How does the main card of CITIC Credit Card receive the SMS notification from the secondary card?

How does the main card of CITIC Credit Card receive the SMS notification from the secondary card?

Credit cards don't need SMS notification, they are all free! As long as you use a credit card to spend or repay, there will be a reminder (however, it seems that only the amount will be notified)

You can also follow the official account of CITIC WeChat on WeChat, so that any consumption will be reminded by WeChat.