Buyers aren't allowed to use threats of poor Feedback or low detailed seller ratings to get something that wasn't part of the original listing. Sellers aren't allowed to demand positive Feedback from buyers.
Members aren't allowed to exchange Feedback for the sole purpose of increasing Feedback scores, gaining eBay privileges, or enhancing reputation. Buyers aren't allowed to attempt to damage a seller's Feedback through a series of repeat purchases.
Feedback in seller terms and conditions
Sellers can't include terms or conditions in a listing that limit or restrict the buyer's right to leave Feedback.
When eBay may remove or adjust Feedback
Ratings and comments are generally a permanent part of a member's Feedback Profile. However, there are a few situations when we might remove or adjust Feedback, for instance, if a member included links, profanity or other inappropriate content in Feedback comments.
Responding to Feedback and adding follow-up comments
You can respond to Feedback you've received or leave a follow-up comment to Feedback you left.
How sellers can request Feedback revisions from buyers
Learn how sellers can ask buyers to revise the Feedback they've left
Revising a seller's Feedback
Find out what to do when a seller asks you to revise Feedback.