1. The differences between China Merchants Bank’s credit card-linked all-in-one card and credit card-linked professional version are: credit card-linked all-in-one card generally refers to activating the automatic repayment function. As for the professional version of credit card association, after linking the credit card to the professional version, you can check the credit card information through the professional version, or when making an online payment, select "Professional version payment" and then pay through the credit card. \x0d\2. How to bind China Merchants Bank's credit card and all-in-one card: \x0d\Method 1: When applying for a credit card, you can fill in the China Merchants Bank card number on the application form. \x0d\Method 2: Bring your ID card in person at the counter and fill out the credit card automatic repayment application. You need to bring your debit card and credit card, and both cards need to be yours. \x0d\3. The process of linking China Merchants Bank credit cards to the professional version: \x0d\ First, you need to bind the associated repayments of your debit card and credit card; if you have multiple China Merchants Bank credit cards under your name and want to link them all to the professional version, log in to For the professional version, there is "Professional Edition Management" in the upper right corner, click "Certificate Associate Credit Card", and select the card that needs to be associated to associate it.