I got a 2012 anti-glare 1680X1050 screen, and it have a sliver screen bezel. As far as I know, it has always been silver with anti-glare screens on macbook pro.
If they are sending a black bezel, they lied to you either to scam you or just to make the sale (you believing they are the only ones with a anti-glare screen with a cool black framed glass on top shiny, of course, hehe)
Cancel it ASAP!
The anti-glare NEEDS THE GLASS TO BE REMOVED! and the cool black grame is the glass inself! (glossy-glass, to make it clearly clear hehe)