Yes, you can get that removed, not only can a seller not leave a buyer a negative feedback hence the lack of the ' red dot' , this is against feedback rules, they also are clearly stating they do not wish to follow eBay guidelines for the return of an item not as described.
Contact eBay Customer Services, their lines open at 8 a.m. if you cal first thing in the morning there's more chance of Dublin answering.
To Contact Customer Services, I find the quickest way to contact them, either for a Live Chat, or you can select to speak and request a Call Back, to click on this link:
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
On weekdays lines open between 8 a.m. and 10 p.m.
On weekends they open between 9 a.m. and 6 p.m.
