Originally Posted by
moral_low_ground
It's not a lot of money but don't see why I should pay all this when it was the airline that canceled my booking.
It's legally iffy, and not in the spirit of EC261. It's your travel agent doing this, so that's who you need to follow up with MCOL in extremis. The TravelUp thread will show how bad it gets, you've done relatively well there. You can make mixed class bookings via Contact Centres.