Feel your pain, happened to me on a smaller scale. Here is what I was sent. I am sceptical of his reply.
"This is most likely the most difficult letter I will ever send on eBay. Mind you, I've been a user here since day one, and invented eBay's hit counters and services back in 1997, and this is a first for me. Nonetheless, I have fully refunded your payment for the FoMoCo can you purchased the other day. Simply put, I screwed this up totally. Not ten minutes before your offer, a gentelman in Iowa purchased two collectible newspapers from me. He too Has your same first name. So when I pulled the packing slip, I combined the orders. I have no idea why. I have no idea how. It literally is the first mistake of it's kind I've ever made. I did write the buyer of the newspapers, but as of this writing, I have yet to receive any reply via email or eBay."
I guess mistakes do happen ..................