Hello, long time lurker here needing someone to sense check this for me if you would be so
kind

I booked an avios upgrade today LHR to BER, paid for economy, upgraded to CE with avios at time of booking.

I’m expecting to earn avios and tier points for the economy paid for ticket - but I have been booked into U class which doesn’t earn anything.

Is this something that just sorts itself out later, have I been booked into the wrong fare class, or have I totally misunderstood how it works? - many thanks in advance, whatever the answer.

P.S. A belated thank you for the many hints and tips I’ve picked up from this forum over the years!