I've had that happen before and the seller came through. I had an increible scary thing happen to me on ebay. The RF 82's I purchased were stolen from the warehouse. WHen I got the call after two weeks of no speakers i got nervous. Then the guy says I don't have any more 82's but I can sell u rf-83's at cost. We haggled and made the deal.
I came out on the good side for once. Only paid $1,200 for brand new RF-83's. Karma is a *****, Klipsch is cool.