I sell on eBay and my eggs are pure wheaten/blue wheaten. I have bought off eBay and gotten nice birds, too! I haven't been 'taken' by an eBayer, but then, I know what I am looking for.
Some people call splash, blue splash because, well, it's a double blue gene. We know it's splash, but hey.
When buying any Ameraucana eggs, it's best to know the breed and it's standard. Get pics of the breeding stock and make sure the colors are varieties accepted in the ABC or a project color that breeds true (ie, lavender).
As always.... Buyers beware.