I would like an answer for this fault advertisement

I bought a Alienware m17 3d on august 5th. I customized it the way i wanted the hardware to be (all the recomandation for the parts are from dell i only click on it)

this is what the review looks like after i customized an m17 you can see the 560m video card in the review

And this is what I get . a 460M video card instead of 560M

DO NOT TELL ME I ACCIDENTLY CHOOSE WRONG VIDEO CARD. Because there's no option that said 460M video card in M17x customization page

As I did some research on the internet some articles in june said the 560M video card have not been released on the market so why is it in the customization list.

What I want from dell is an upgrade for my video card from 460m to 560m which I paid for it. WHY? Because I "Review and checkout" AND I PAID FOR 1.5GB GDDR5 Nvidia GeForce GTX 560M   NOT THE 1.5GB GDDR5 Nvidia GeForce GTX 460M