The number of scams that happen on DP is increasing... sad to say. I got scammed on DP 3-4 times when I was new. Then even had recent history of successful ones!
Sorry you got scammed and Thank You for warning us I looked at the site and I must say - it has huge potential! There are many many ways you could go to make some nice $$ off of this. If I myself had some extra around i too would be making you an offer for it I would not give up on this - it is not quite what you thought you were getting and yes that makes the seller a liar, but maybe to "get even" you should turn this site into a $$ maker