They are brokers for puppy mills.
Today Show Airs HSUS Investigation into Huge Internet Puppy Broker : The Humane Society of the United States
Again, NO reputable breeder would give his/her dogs to be sold in such a way. Did you actually meet the doggie parents of your puppy? Did you see them in their daily environment? Did you meet the actual breeder at his/her home?
What I find more concerning than the looks of a puppy, is that money was given to support this kind of facility.