How to submit a transaction dispute complaint in 1688?

You can handle it according to your actual situation:

Situation 1: The transaction is still in progress, and the order status is: waiting for the seller to ship, waiting for the buyer to confirm the receipt of the goods, etc.

You can contact the seller as soon as possible to negotiate, request a refund and pay attention to the transaction timeout. You can wait for the system timeout to return or refund successfully, or 3 days after the refund application, click "Refund" in time, click "Complaint" on the refund information page, and upload valid vouchers (such as physical comparison pictures, quality inspection vouchers, etc.) according to the prompt, waiting for the verification of primary two.