That's a bummer. I hate using ebay these days. I sold a card the other day and the guy wants a return because he put a freaking magnifying glass over the corners and says there is minor damage and now he can't get it graded as a 9.5 or 10 so he doesn't want it. You can see in my photos that the corners were slightly fuzzy. I called ebay and they told me I had to go through the return process and then appeal it. From what I've read it looks like I won't have much luck at that point. Looks like the buyer does it a lot based on the feedback he leaves on other auctions he has won. I never thought about someone just buying cards hoping that they can get graded really high and resell but just returning them as "not as described" if it doesn't look good enough.
Sorry, not trying to hijack your post, just happened yesterday and I'm still salty about it. I hope you can manage something by reporting him through ebay.