same thing happened to me when dealing with PCS during my pre-order Q&A phase.
I was very interested in the individual-interior leather style rust brown. I asked and my SA went and did research on his side only to come back with "individual is not offered to you." I took it as one of the many limitations/restrictions of the military purchase program and didn't really prod for more information.
Like has been mentioned, if others have done it through the mil-program, to me that's all the ammo you need to take to the dealer and keep poking them to order what you want.