The cash back of many products is generally returned to many wallets. If you want to withdraw cash, you can follow the following steps:

(1) Open Duoduo and find Duoduo wallet.

(2) Click to open many wallets, and options such as wallet balance and bank card will be displayed.

(3) Click on the bank card and bind your own bank card first (if it is already bound, please ignore this step).

(4) After binding the bank card, go back and click Balance-Withdraw, and you can withdraw the money in your wallet to the bound bank card. The money in the bank card can be transferred to WeChat (provided that WeChat is also bound to this bank card).

I hope I can help you.