If JD.COM's IOU is overdue, can I complain?

Of course. JD.COM is overdue, which means that products such as white bars or gold bars owned by JD.COM have not been repaid on time, resulting in arrears. If JD.COM IOU fails to remind them within the time limit, they can lodge a complaint, but it should be noted that the complaint has no result. Even if they do, they will only let the two sides contact, negotiate and propose solutions.