I am so sorry this happened to you. I have had this very thing happen to me and there are quite a few on here that it has happened to.
I am learning and it was a costly education also. Even if you do the checks, go with YTCA breeder and show person it means nothing nor does the run of the mill. Next time I will be at the shows watching which dogs are winning, who the breeder is and not just one show. That expense would have saved me thousands also.
I wish I had some advice, but i do have empathy...so sorry
