I have followed Julie's website for a couple of years now. When I first heard about her, I saw that the wording for her Ameraucanas and it was pretty obvious to me that she was selling Easter Eggers. Since then she has added that she has a line from Lisa Cree. I don't recall Lisa ever telling me that any of her birds laid a green egg. There are no pictures of any of her birds on her website so we just have to go on the information that is listed.
If Jean says that Blues, Blacks, and Buffs lay a green egg then I will have to defer to her experience. All I know is that to be considered an "Ameraucana" they must lay a blue egg. Therefore, I would agree with Jean in that I would NEVER sell a green egg as an Ameraucana.
As for the "white" egg, my guess is that it is a VERY light blue egg. I have two of my #10 Blue Wheatens that lay a very pale blue egg. There were times during the extreme cold of last winter and the extreme heat of this summer that one of those laid an egg that was barely distinguishable as having any blue.
With regard to contacting Julie, I would agree that is the thing to do. But I would be prepared for the call and ready to ask specific questions.
On that note, just as a point of information, before buying hatching eggs, I would personally recommend that folks ask a lot more questions BEFORE buying the eggs than they typically do. I don't have the time to go into them all now but anyone can do a search on here with me as the Author and you should find a list of those questions somewhere. So suffice it for now to say that when someone buys eggs from me they are ID'd with more than just "BAM". Each egg is ID'd with a number that correlates directly to the parents of that egg. Plus each shipment will contain at a minimum two different lines, and usually three or four, so the buyer can breed their own birds without worrying about inbreeding as long as they toe punch (or in some way ID them) the chicks when they hatch.
God Bless,