First of all, you have to pass the ID card authentication and bank card authentication; Then click on "Personal Center" and you will see "My QR code". After clicking, save the QR code to your mobile phone and send it to your friends. After passing the certification, your good friend will become your "second child". As long as he swipes your card, you will have income. But his level must be lower than yours, otherwise you won't enjoy his credit card income.

The grade of Jimmy's wallet is divided into "Xiaoer, shopkeeper, businessman and dealer". The first three grades are based on the number of shared and certified small two, and distributors need certain capital investment.