Trying to book 2 one way tix in late October, boi-sea-ogg.
U/G space is available on both legs.
Both legs on AS metal.
I can book 2 tix using CF code alone & I can book 2 tix using just the "Upgrade certificate" (GGU)
BUT when I try to use both of them together I get this error message:
Error. These search results are showing flights that don't qualify for the discount code you entered. You can change your search to include flights that qualify for this discount code.
A FT friend said she uses both together all the time and has never seen that error message. Anyone have a clue as to why?