Is this an Eames Group Lounge?  

If you google Eames Aluminium Group EA115/116 (Vitra version) you will see that this model is still in production by both Vitra and Herman Miller.
There is also the model EA 124 which has a higher back.
Both models are considered lounge chairs.
Did this person buy the chair from you without seeing a picture?

Well, I think she's right. ...
Well, I think she's right. I'm not an Eames pro, but I'm pretty sure that the lounge chair has less of a stem between the seat and the base. So this would be a desk chair (which could explain the shorter back).

I looked at EA115 and EA116,...
I looked at EA115 and EA116, but they both have the shorter stem. Isn't this chair EA109? The desk chair.
http://www.bonluxat.com/a/Charles_Ray_Eames_Aluminium_Group_EA_109_-_EA_...

Ah, I stand corrected. ...
Ah, I stand corrected. Seems that some of the EA115s have a short stem, and some a long stem. Strange.
I guess the true tell-tale sign between the lounge and desk chairs is in the slope of the backrest...though clearly, I don't know what I'm talking about. 🙂

Thanks!
Thanks for the info! I feel a little retarded for not knowing this.
I did send images- a total of 12. Hopefully knowing that she has a "lounge" will change her mind regarding a refund.

Surest way
To tell would be from the recline angle. Hard to tell from the photo above (the one on the left appears more reclined). Do you have a photo of the profile?

convrge
There is the Aluminum Group lounge with the high-back, pillow, and tilt-swivel base (EA322). This is what the customer might have assumed this chair was.
Then there is this: the Aluminum Group lounge with the low-back and swivel base or fixed base (no tilt either way). I have this version and I would consider it a "lounge chair".

I really dislike the...
I really dislike the corporate sterility of this design.

I think it is a beautiful design...
Almost "see-through" from the side angle view, I like the graceful thin lines and the the lack of bulk of this chair.
It is possible that the association with institutional use persists because of the chair's success as an institutional design.

the design is beautiful with the original cast aluminum "contract" base
as depicted by the photos of this thread. the later version with the universal base on the other hand are not as elegant and sexy and that's the version we mostly see in a corporate/institutional settings.

"It is possible that the association with institutional use persists because of the chair's success as an institutional desi
Exactly-- Lit Up's simply projecting his (her?) bias onto a perfectly lovely design.
"Sterile"? What does that word even MEAN, when applied to a chair? Do you mean it's highly-refined? That's praise, in my book.

.
Its a seminal design worthy of respect, despite all the poor derivative chairs. It may (or may not) look institutional but they are still well made and attractive and an important part of modern design history, sometimes the 'sterility' of good design (Hi Dieter!) is what is a comfort, the clarity can be a great tonic, have you never got home after a really shit day and just don't want any bloody fuss? Thats when design like this wins.
Besides in context even the 'warmest' modern design can be rather awful.
http://www.flickr.com/photos/sandiv999/3734437324/