Reply To: Codeshare cancelled flight but flight is still operating

[AJA]

If Qatar Airways has cancelled your flight then EC261 kicks in and should allow a reroute at earliest convenience. As it is you are now scheduled to arrive 3 days later than initially scheduled which means significant compensation payment for all pax on the reservation.

You might have to fight Qatar for it though. And it sounds like they won’t reroute you since you’ve accepted change to 25th via MAN already.