Hi,

I've got a EDI-LAX return coming up soon in WT+/T Class, and I've just been given 15K ex-gratia miles after some issues I had on journey last week, so thought I'd see if could treat myself to a MFU to CW on the return leg.

However, the Upgrade with Miles option for my booking is disabled on MMB. My question is, what bucket class needs to be available for a T class MFU?

My return leg is the BA278 on 9th October, and SeatCounter is showing:

A B C D E F H I J K L M N Q R S V Y
5 9 9 9 9 5 9 3 9 9 9 9 0 0 9 0 9 9

Something makes me think it would go into the I class, and there is availability there, but I'm not sure if that is the case.

Could the upgrade option on MMB be disabled because i have a domestic leg at either end of the trip; I'm sure i've read something about this confusing the systems as they can't find an appropriate bucket.

Thanks