Originally Posted by AndyGreen

If I use the 'book and upgrade' using Avios (e.g. BKK-LHR purchase Premium Economy, Avios upgrade to Club World), I understand that I accrue the Avios and Tier Points for the booked class, but does the sector count as an 'eligible flight' for moving status tiers?

BA say: "Reward bookings and agency or industry discounted bookings are not eligible."

But I'm wondering if an MFU is classed as a 'reward booking'?

I've searched for this but can't find a definitive answer, sorry if it's lurking somewhere already!