After opening Taobao and entering the Taobao cancellation page, there is a gift in the lower right corner. Click to enter and redeem the corresponding coupon on the page. You can see it in my Taobao coupon card after the coupon is redeemed. There is a time limit for the use of coupons, and they cannot be used after expiration. If you can't exchange it, there may not be enough stars. Before you exchange stars, you need to play games to save them.