Originally Posted by eternaltransit

For downgrades - I think you'll have a hard time getting anything out of EK if they have given you reasonable notice of the change considering there are similar restrictions on compensations with cancellations but there is nothing specific in the article (article 10) of the regulation about it. Which is another way of saying that, there's no specific case law they are quoting on it yet, but that would be their position if you pushed to claim.

They haven't actually downgraded you yet, because you haven't turned up at the airport with an F ticket to be placed in C.

Then you'll have a fight over whether it's 75% of the cost for that sector allocated on a per-km pro-rata basis, or 75% of the cost of the entire ticket. And then you'll have to fight with the local regulator.

What would be the cost of a new C ticket now, compared to F? If your schedule is tight, I would just proceed as required and have it out with EK later for 75% of the difference in sector cost. Your F fare class ticket would still be valid for F lounge access etc. no matter the onward operating aircraft.