Avios Flights
The Avios must have expired.
I have just booked two Avios flights one MAN-LHR-MAN for 9000 Avios plus £35, and the other is
MAN-LHR-FRA & v.v also for 9000 Avios plus £35.
You would only be quoted full taxes if you have not collected a single Avios point in the last 12months.