If Pinduoduo merchants send empty orders and there is no delivery, you can complain through the following steps.

First, log in to the Pinduoduo account, enter the order page, find the relevant order and click the "Complaint" button.

Then select the reason for the complaint as "The merchant did not deliver the goods" and fill in the detailed complaint content, including the order number, merchant name, transaction amount and other information.

Finally, submit a complaint and wait for the processing of Pinduoduo's customer service. Pinduoduo will investigate the complaint and take corresponding measures according to the situation, including refunds and punishment of merchants. Remember to keep relevant evidence, such as chat records, payment vouchers, etc., so that you can provide them when you complain.