If there is an issue in the transaction, you can contact the other party in the chat box.
After completing the transfer, click on【I have paid】. If you haven't been able to reach a consensus with the other party, you can click on【Appeal】, fill in the complaint information according to the notes and initiate the complaint.do read the FAQs there with questions such as: "What is a complaint? How can I complain? How to judge a complaint order?"