I have approx 90,000 Tk miles sitting in my account which I would like to use to book an upgrade ticket on Air Newzealand flying from LHR to LAS. I would book in PE and then upgrade R/T. I wish to travel in the middle of Sept 2012.
My questions are:
Do I need to purchase the relevant fare on the air newzealand website and call them up and try to upgrade OR
Do I go throughout the Tk website. (The Tk website is so buggy and really difficult to use
Any advice would be appreciated.