The concern should not be with how much was paid for the puppy
the concern should be the puppy's health
if the pedigree lines have been falsified, there may be a possibility of hip dysplasia, hereditary disease, eyes etc
Sadly this puppy still needs the love and attention just as much as any other.
if she bought the puppy through false pretenses & mis representations, then she needs to make others aware and she can do this through many means without the worry of being sue'd as long as she is simply telling the truth.
perhaps she should also have looked more closely on where she was buying this puppy, as sadly today its a minefield when searching.