The first one: you can find the buyer's on-site mailbox by looking for the software and plug-ins with bad reviews, matching the order ID. However, the on-site mailbox is restricted by Amazon's official supervision, and the content of the on-site letter should not be too straightforward to induce the buyer to delete the bad reviews. The possibility of removing bad reviews is very low.
Second: In fact, many sellers and friends are using this method recently! It is through the reviewer query function of Cool Bird seller's assistant that the real information of the buyer is obtained, including the real email address of the bad review, the phone number of the buyer, the order number and so on. After obtaining the buyer's information, actively contact and negotiate with the buyer, and the bad review can be removed to a great extent.