There is no need to associate the China Merchants Bank credit card with the professional version through the counter.

After logging in to the professional version, please click "Professional Edition Management" - "Associated Card Management" - "Certificate Linked Credit Card" in the upper right corner (for version 7.0 Professional Edition, please click "Settings" - "Associated Card" in the upper right corner "Manage" - "Associate Credit Card"), and then enter the credit card query password according to the prompts. After passing the verification, you can select the credit card number in "Credit Card to be associated" and click "Associate".