1. 1. Pay attention to the official WeChat account of Bank of China. After the card is tied, click the credit card on the right in the menu bar below, enter the credit card number and additional code, and then click the emergency contact after entering the application page.

2. Secondly, on the mobile banking app, click the credit card, and then click the emergency contact after logging in.

3. Finally, on the credit card mobile app, click the card service to inquire whether the cardholder can open an emergency contact.