Have you opened a case for item not as described,  and the case has provided you with this strange address?  Was the seller based in China by chance but the item states location UK ?  

Contact Customer Services to solve this for you, to refund you direct or provide a valid return label.

Contact CS with the link below for a Call Back option.  Try at 8 a.m. on weekdays as there's more chance of Dublin answering. It's a Call Back option, so you'll hear if it's Ireland calling!

https://www.ebay.co.uk/help/eua?id=5190

@jennifern1985