2. After entering the homepage, you can see the last option "My" at the bottom of the interface, and click it;
3. After opening the "My" mobile phone interface, click "My Order" inside;
4. After opening the "My Order" mobile phone interface, click the first "Group Purchase";
5. Find the public comment group purchase coupon and open it;
6. Find "Apply for Refund" in the last column and click;
7. On the mobile phone interface of "Apply for Refund", slide the mobile phone screen to the bottom, check one of the reasons in "Refund Reason", and then click "Confirm Refund" below to finish.