First, you can bring your ID card to the nearest CCB outlet.
Method 2: If the mobile banking is enabled for the account, you can log in to the mobile banking and view the complete account through the "Home-Account" menu (if you don't see the "Account" menu, you can click the "+"in the middle area of the home page to search). If some accounts are hidden, you can click "View Card Number" to display the complete accounts.
Method 3: If online banking is enabled for your account, you can log in to online banking and view the complete account through the "My Account-Account Inquiry" menu. If some accounts are hidden, you can click "My Account-Account Management-Account Hiding" to set "Unhide", and check every 5 minutes after the operation.