Originally Posted by
Often1
OP chose the option of cancelling his DE segment and rebooking himself. He is entitled to a refund of the value of the unused DE segment in addition to the delay/cancellation compensation of EUR 600. He may also be entitled to some "duty of care" compensation, but it appears that he was on his way soon enough so this may all be minimal.
This is utterly wrong. DE simply refused to honor its obligation to rebook the OP on the next available flight. He booked himself a new flight on AB. DE is under the obligation to pay for such costs in addition to the EUR 600.00 and they are invited to keep the value of their ticket issued.