Hello, every shopping gift certificate will have a corresponding gift certificate number. If the goods and shopping amount in your order meet the conditions of using gift certificates at the time of settlement, you can normally choose gift certificates to offset part of the amount. In this case, you don't need to enter the payment password, just choose the gift certificate and submit the order directly. If you are still prompted to enter the discount code when submitting the order, it is suggested that you send the screenshot of this page as an attachment to Dangdang customer service mailbox and explain your problem in detail so that the staff can verify and handle it for you. Dangdang customer service email :service@cs.dangdang.com, please understand, thank you.