On the auction page the rating next to the seller is a users seller feedback rating. This rating is calculated using only seller feedback. Feedback this user received for buying items is not included.
You may only leave feedback once an auction is out of the pending state.
If you need to change a feedback you already left due to an error, please contact us and submit a request. We will look at the circumstances and may be able to change it for you if the request is received within 30 days from the end of the auction. After 30 days have passed from the end of the auction, we cannot change your feedback anymore.