I feel sorry for the puppies having to leave their mom so soon. I cannot believe a veterinarian would promote selling babies before eight weeks.
I think the woman is lying. A person selling dogs at a mall does not have a lot of creditability. IMO I wonder if she is trying to sell the dogs quickly without having to pay for taking care of the puppies and to make a quick buck. I agree with the poster above my comment. She could give the puppies to a rescue who could meet the challenges of taking care of four-week-old puppies.