How does Yuantong Express report the problem with its mobile phone?

1. first, scan the express delivery number with yuantong traveler.

2. Then there is an abnormal sign-in operation below. Click in and select the cause of the problem.

3. Just submit it at last, so that the problem can be done well. YTO Express, registered on April 14th, 2, is a private limited liability company belonging to the postal industry, headquartered in huaxin town, Qingpu District, Shanghai.