Credit card recommendation code refers to the cardholder's recommendation to handle the card for the cardholder, and the bank will give the recommender a certain recommendation reward. If you choose to recommend the card on the official website application page or the page after credit card binding in the official WeChat account of mobile phone, and then share the application page, the other party will fill in the information on the application page you shared, it will be deemed that your recommendation is successful. If you need to fill in the recommendation code, generally fill in the mobile phone number of the credit card bound by the recommender.