As a seller on the Alibaba platform, if you encounter a problem or need to file a complaint, you can follow the steps below:

1. Log in to your seller account on the Alibaba platform.

2. Find options such as "Customer Service" or "Help Center" in the navigation bar at the top of the page and click to enter.

3. On the customer service or help center page, look for topics or keywords related to your problem and find relevant help documents or FAQs.

4. If you cannot find a solution in the help document, you can try to contact the customer service team of the Alibaba platform. On the customer service or help center page, contact methods such as online customer service chat, telephone consultation, or submitting a work order are usually provided.

5. When communicating with the customer service team, describe your problem or complaint in detail, and provide relevant orders, transaction records, evidence and other information so that the customer service team can better help you solve the problem.

6. According to the guidance and suggestions of the customer service team, provide further information or operations as required so that they can better handle your complaint.

Please note that the specific appeal process and contact information may vary by region and platform policy. It is recommended that you find relevant help documents on the Alibaba platform or contact the customer service team to obtain accurate information and guidance.