When I worked at a training barn, a paint stud came in. The people who had him bought him sight unseen from florida and had him shipped straight to this barn for training in nebraska. They FINALLY came to see this horse for the first time a few weeks in when the horse was showing signs of lameness (ended up being navicular cysts)..... Now Im assuming they didnt have a PPE done on him other wise the NC's would've been seen and either dealt with /or they would have not purchased him.... And apparently he was not near as tall as was advertised and he had a huge head (camera angles hid that apparently:)- sweet sweet boy but NOT breeding quality. These people had no recourse. SOOO my guess is you don't either..
If it were me, I would NOT have sent them the whole amount period...if they push for that BS (being as the horse was unseen) than that makes me want to back away from the horse in question. Also I would have made sure that whom ever was in charge of that sale was there to answer questions ect when I went to pick that horse up. Also, SORRY but I cant help but question your breeding practices/ knowlege, when your willing to forgo a PPE on a horse that plan on using for breeding. Its one thing to be unsound due to injury or early sickness,Its entirely different to be unsound due to some wacked out conformation...this is something you find out in a PPE/ also a breeding soundness exam is a must..horses can carry some icky things!!