Hoover's EE description: Our Easter Eggers are a combination of the traditional American Easter Eggers, which typically has a pea comb, beard and green legs, along with the European version of Easter Eggers, which are called , which typically have yellow legs, a single comb, and commonly a tuft on its head. The is a hybrid cross between a commercial type Legbar, and brown egg-laying hens, therefore unlike the American Easter Egger, they will not breed true, with only a portion of the offspring laying colored eggs. Overall, the Easter Eggers typically lay colored eggs, but up to 15% of the time you will have one that lays brown or cream eggs.
It sounds like they are selling both the Ameraucana and Legbar based EEs in the same package. You just happened to only get "Grünleger".