I am afraid this is a puppymill or possibly a broker. I googled the phone number and found this ad at the bottom of this page.
Jackson Sun Classifieds: Dogs, Cats, Birds, Others
I copied and pasted the ad in case the link doesn't work.
CHIHUAHUA Puppy, female, chocolate $200; POMERANIAN puppies extra small, 1 white female, 1 black & white female, 1 silver female, 8 wks. old, $200; 1 female Yorkie, 10 wks. old, $400. All shots & wormed reg. 731-687-7159