I had a morning flight cancelled and rescheduled for the evening. Looking at the options, it seems that if I rebook to an afternoon flight, I will get a 30% discount code. Seems too good to be true considering that I can save hundreds of Euros on a Premium Economy or Business fare to Asia or USA sometime next year (hopefully!) on the back of a 46 EUR ticket! Has anyone used this voucher? Are there any catches!?