That is really weird, We will probably never know if it was a scam.
I will know since I bought the decks. On the other thread I mentioned that they have another shop on Vendio now called 'ws.magic'. I found that link through the email they sent to confirm my order, one of those 'click here to see your order details' and it took me to the ws.magic store on Vendio, and indeed to my order page.
I also see that ws.magic is their username on eBay where they have an eBay store called Wholesalingmagic or something. The feedback on the eBay user ws.magic is good too.
I emailed the address I got the confirmation email from, which was the same address that my PayPal payment went to, and asked them about what happened to the original Vendio store. I'll post their reply when/if they reply.
Here's hoping it's not a scam. As I said on the other thread, the only difference between the ws.magic store and the wholesalemagic store on Vendio is that there seem to be much less items. If I recall, they had a large number of cards on the store that Don originally posted, now there are 18. But, we'll see.