Originally Posted by
DYKWIA
This does not seem to a rogue agent, but BA policy. The ticket cost nothing, so 75% of nothing is nothing. I would have thought they'd still be due 75% of the taxes though?
I must admit I am not an expert on EC261 so I defer to the advice in the EC261 thread on this point in terms of exactly what would be due. Whilst it could be argued the voucher per se is "free", the avios cost and the taxes/fees/charges are not as you noted.