Accidentally listed an expensive item for 99c because of eBay's terrible UI. Ended up having an uptight buyer give me a negative even though I tried to explain. EBay decided not to remove the review which hit my rating hard. I ended up selling the item for a couple hundred dollars less because of this.
I recently purchased contact solution which showed a picture with a 2020 expiration date. The item I received had a 2019 expiration date. EBay ruled in the seller's favor claiming that the return window had passed and my negative review was removed.