When you receive the item, start a return through Ebay then you will get the return address and a lebel which you will need to pay for.
Sometimes very large companies simply don't respond to messages. With over 2 million items listed, I would guess they simply don't have enough staff to reply to emails.
"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)
