Marketplace seller feedback once added cannot be edited. It can only be removed. Once you've removed feedback for a third-party seller, you can't post new feedback for that transaction.
To remove third-party seller feedback:
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.
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