Wow, you have all the courage I don't have, wish I did, hope you don't get any negatives back.
I did get an e mail from eBid support asking if there was tracking on the items and I sent them the tracking numbers so they can see the items were delivered before the Paypal dispute was opened. I also told them I got no e mail from the buyer claiming the items weren't received, just the notice from Paypal about the dispute.
Yes, I do look like I'm scared, and I am, but with good reason - I was tossed off Feepay in 2000 for a similar situation, in which I paid for items I won, then got negative fb for non-payment, (I sent money orders to the seller, so no Paypal to back me up). Feepay then accused me of selling pcs from another continent! Needless to say, I was removed from the site without being given an opportunity to defend myself in either case. I think anyone who has had a similar experience would feel as I do about it.
Best wishes to all,