Moderator, Iberia Airlines, Airport Lounges, and Ambassador, British Airways Executive Club
Join Date: Feb 2010
Programs: BA Lifetime Gold; Flying Blue Life Platinum; LH Sen.; Hilton Diamond; Kemal Kebabs Prized Customer
Posts: 63,846
I was advocate cancelling over the telephone and then making a fresh booking over ba.com
The reason being that if you muck around with an existing booking then it may get delayed in ticketing and/or become difficult to manipulate, get upgrades/POUGs via ba.com, though with the Norway add-ons the latter may not happen.