First, if you have purchased the goods and delivered them to you at the same time, you tell the customer service that you will make comments or follow-up comments in your Taobao order and give the other party a bad review, and the customer service will contact you actively.
Second, if you have placed an order and the other party has not delivered it, you tell the customer service that you will complain to the Taobao clerk.
You can leave a message on Taobao Want Want.