Is there anything I can do?
Nothing through eBay. A bit more info. on when you bought it: how you paid, whether the seller was a private or a business seller, in the UK or abroad, might have helped us to advise you more fully about other options.
eBay did warn you in the in the user agreement that that they do not guarantee the quality of items sold here, that descriptions will be truthful or accurate or that items for sale will be safe or legal - or even exist.
Would you have bought from a shop that stated this? There are risks in buying from unknown sellers on eBay; it isn't like buying from the shops. eBay is a jungle.