After you've ordered from a Marketplace Seller, you can leave comments, feedback, and ratings to let other customers know about your experience. You have 90 days from the date of your order to leave your rating and comments.
Comments you leave about a Marketplace Seller should be focused on your buying experience:
The rating system is 1 to 5 stars, with 5 stars being the best. A Seller's average rating will appear alongside their name on our site. Before you leave a critical rating, make sure that you've given the Seller every chance to resolve the issue first.
Amazon reserves the right to remove feedback that isn't directly related to the buying experience or violates one of our guidelines. If your comments include any of the following, your feedback is subject to removal:
Note: For more information about leaving product reviews, go to Customer Reviews.