I would guess that in Business BA has some seats available at a discounted C class fare while in the back they only have non-discounted seats.
I remember once (and only once) when I had to travel Geneva-Sydney that BA had cheaper F class fares than J. Business was almost sold out so the only the full fare was available. First, on the other hand, had plenty of seats available so they continued to offer a discounted fare cheaper than the full J level.
I had to get our Vice President's approval, since travelling F was verboten at the time. Since I absolutely had to be there she approved it (and told me later she had never flown F, herself)
Shows BA's antiquated revenue management system. An unrestricted fare should not be higher than the lowest fare in the next cabin. (To maximise their revenue not that I care - It just looks stupid)
Last edited by ExXB; 20th February 2012 at 12:43.