I will defend the OP here.
I just got off the phone to the Apple store in Cardiff, and the specialist (or is that stuff) didnt seem to know what was going on. I asked for a Macbook Pro 13" retina and specifically said the new 2015 model. He kept trying to tell me the new macbook wasnt out until march. It took a while, but when he eventually listened, he learned there was indeed a 2015 rMBR!
Maybe they just need briefing up on the new products apple are selling?
I will have a go at the OP here.
Stop being a bitch! You knew what you wanted, you obviously never told the guy that is what you wanted! He didnt lie, he just didnt know that he had what you wanted! Seriously, there are bigger things to worry about than a new laptop.