I bought a large item from the seller and it arrived damaged. 
I then started a return- had a postal label printed and arranged through Royal Mail to collect. 
The label was obviously inadequate for the door, so I delivered the door back to them. They have not acknowledged receipt of the part, except through messaging where they have denied a refund saying the door was damaged after delivery- even though the door has not even been unpacked and remains in their packaging. 
What now? Because a return is started, I can't seem to get through the automated customer service prompts and talk to anyone at ebay.