£100 for food - what on earth is she feeding it. Puppies dont eat a great deal at that age - a huge sack of the dearest dog food is no more than £40 and that would last months.
Most *good* breeders honour holidays etc so I would say that this is no different. Also a *good* breeder would also want the pup to go into an environment where you were around - like the siutation you are describing.
I am just wondering whether if she was left with a couple of pups from a litter, whether the price just increases as the days/weeks go by.
Not sure what to suggest really, sorry
Welcome to COL by the way - you will find a wealth of info and advice and we are all dead friendly