You need to speak to Ebay - this was obviously a private seller sale, posted with Simple Delivery and, when you opened a return stating that the item arrived damaged, it was up to Ebay to refund you.
You can use the 'contact us' link at the bottom of the page but you will have to persevere with the automated assistant until you get to speak to a person.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
