There's not enough information to say the animals were misrepresented. Ball pythons in particular can feed for one person and then, after minor changes in the environment, stop feeding for another. If I interpret everything right you thought that because all communication ceased this person had right off the deal. If he never said that upfront you should have inquired about it. You never paid for the animals, that's enough reason for making all efforts to contact the seller to make sure how you were going to resolve the issue. You state he had your contact information; that's not enough, you had his animals (until they died). On the other hand I don't understand why he let all that time go by without even attempting to contact you. Now there's one other issue that comes into play and it's the price of the YB. If he sells you one at current prices the seller will definitively be at a loss as prices have dropped from 2006 to now. You can get excellent YB males for $150 (an less) with females going a little higher. One way or the other it would be important to hear his side of the story. The thing that is still unclear at least for me is why he didn't make contact at all during all this time.
Thanks
Thanks