Hi all,

I flew PRG - LHR - IAD on Monday and had upgraded the LHR - IAD leg from J to F using Avios. MMB was showing that I would earn 430 tier points for the whole booking (as opposed to the 360 it should be), and also an increase in the Avios that would be earned.

Anyway, this morning tier points and Avios posted for the outbound legs and it has indeed posted as F tier points and Avios! My understanding is that I should have only been awarded the J tier point and Avios, so should I i) expect the additional tier points and Avios to be clawed back, and as a consequence, ii) be cautious about spending the extra Avios?

Thanks in advance!

*Update* The person I was travelling with on a separate booking also UaA'd from J to F on the same flight and has also had F tp's and Avios post!