They are not true ameraucanas. The biggest rip off is that they don’t sell by color,
“We maintain this line to showcase the multitude of color ranges that one breed of poultry can possess”
True ameraucanas are sold by color variety, for example:
wheaten, buff, lavender, black. If a line Is sold under the name of a specific color variety, and bred to standard, they are true ameraucanas.
http://ameraucana.org/
This is a good source for information. There is a directory on their page for sellers of true ameraucanas, bantams included.
I recently purchased bantam ameraucana hatching eggs from this person:
http://www.gypsyhen.com/
she has Bantam ameraucanas in lavender, silver, and BBS wheaten varieties.
In The end, you’ll have to find a breeder who can ship eggs or chicks, or who is close enough for you to pick up eggs or chicks.