You are too late to claim from eBay, on all listings aside from Classified ads eBay, explain their 30 day MBG Money Back guarantee policy.
This means if you do not receive your item within 30 days of the item's last estimated date for delivery, you can claim under this policy for a full refund.
You are far too late, as said.
Try your payment provider now for help with your refund, most offer a 120 day buyer protection policy.
Read eBay's 30 day MBG policy from the link below if you wish to buy again from eBay, it can save you a lot of time and money.
https://pages.ebay.co.uk/ebay-money-back-guarantee/
@francis_584