Originally Posted by
mikeyfly
If you'd paid say, £560.00 fees / surcharges on a longhaul ex LHR F as the companion, your comp on the segment downgraded would be 75% of £280 = £196.00. Zero Avios
Although cheap, the £500 given seems generous if this is the amount owed
For accuracy EU61 does not mention compensation for a downgrade - it refers to 'reimbursement'.
The courts have also ruled that
(a) the reimbursement is based on the cost of the sector downgraded not the entire ticket
(b) the taxes and fees etc are excluded from the calculation. The only time you would get a refund on any tax element would be for example someone was downgraded into economy on an ex-UK flight.