Seadog
Book earlier next time. FR operates on a cheap seats first, dear seats last basis. Obviously a lot of punters had the idea of taking that flight before you.
I fly BA whenever I can [two longhaul this year and another at Christmas] but when you fly into Terminal 1 [Republic of Ireland] at LHR the lack of facilities at places like Treviso, which I have flown to with FR, doesn't bother me so much!