I'm going to be the oddman out, but you shouldn't have paid the price for a breeder unless it was a breeder. "Don't count your chickens before they hatch." If she was so close to 1K g's then she might have stopped eating around this time regardless of being cooled or not. It should have been something you were prepared for.

I think the breeder was wrong not to feed her, but you shouldn't have assumed the bp was going to gain so much weight. They all gain at different intervals anyway.