Fake SM6's

Hey, So I bought some used sm6's on ebay, and it looks like they're fakes. My first time buying fake clubs (I think!) and don't see much out there in terms of identifying fake 6's. Seller wasn't a huge ebay guy, so pretty sure he was clueless. I thought I'd share my experience to hopefully help someone else. The only reason I caught this is because I asked a seller to bundle 3 clubs that were up for separate auctions to save on shipping. Turns out 2 of them have the same S/N..

http://imgur.com/a/KIjaq

Edit; just received this reply form the seller, So I imagine Im getting a refund from ebay then? -- "Those were ordered by a golf course directly from Titleist, and they were drop shipped to me in a Titleist box. I also indicate that I do not accept returns on my items. You can start a complaint through eBay and I will deal with them but I will not be issuing you a refund unless eBay instructs me too. Sorry but those are authentic and I can prove it if needed"

Update:

So they're real! chatted with Titelist and the seller today and everyone agrees 2 matching S/N and a different third with different etching is a recipe for success. JK, Conclusions were jumped to, and I'm sure a few of us learned about matching sets and S/N. Once again, I googled the F out of these and found way more info identifying these as fakes than authentic, but thats the internet i guess.