1. I took my ID card to the relevant bank to check my bank account information.
2. Call customer service with the mobile phone number you reserved in the bank, then transfer to manual service and report the ID number of the card you registered at that time.
3. Log in to the online bank for inquiry.
Online banking inquiry method:
1. Log in to personal online banking at the official bank;
2. Click "My Account" in the menu at the top left of the homepage to display my card number and other related information.