I don't consider it raining on the parade. I hate to post something that will upset the OP anytime, especially since they didn't do ANYTHING wrong at all!
But I feel it's better to let them know that it's highly unlikely that a breeder would sell a pair of pied hets for $250 now, rather than them putting the YEARS into getting them to sice and breeding them, and THEN finding out that they were duped.
Plus, better to look into it now, when there is a chance to get it taken care of.
Sorry you think I want to ruin anyone's happiness in their pets. I really do not.