Originally Posted by
omk298
You have been shortchanged on the compensation - as you had to leave more than an hour before your original flight you should have got £520 each for that. You would need to take it to CEDR to get that though as BA won't pay up as they should otherwise. And yes, I think you should have got more cash back for the 75% - they are allowed to remove actual taxes and fees from that calculation though, so it wouldn't be 75% of the total £450.
I suspect this was £260 rather than £280, so the 50% cut for arriving early.
OP see above about Azurair, it's a complex area and CEDR is not guaranteed to pay the full £520. But the carrier surcharge in my view is part of the fare and should be refunded accordingly. CEDR has another inconsistent view of this, so in absolute terms you may be better off going via MCOL. But if going CEDR you need to really highlight how it's not a real tax and that it varies at BA's sole discretion, as an adjunct to the fare.