Originally Posted by Smirnoff

If you booked the lowest CE fare, which books into I class, and currently costs £398+tax=£499, then this is completely non-changeable. No-one as BA is going to be able to override the commercial fare rules (except perhaps for death of a family member). The most you are going to get back is the £101 taxes/fees etc less an admin charge.

Had you gone up a fare class to D class (which currently costs £538+tax=£639), this buys you flexibility, as you can change these flights up until midnight the day before each departure for a £30 fee (well actually £29.70, but I don't know why), subject to D class being available, otherwise you pay the fare difference to C or J class in addition.