They have two websites....
Yorkie Puppies For Sale. Tiny Miniture Yorkie, Tea Cup Yorkie Puppy Royal Yorkies Yorkshire Terriers
I looked them up on the USDA breeder's list...they aren't on the list.
Their health guarantee is cruddy...as in there really isn't one. I doubt you will receive anything from the breeder themselves...although you could try suing her in court.