Originally Posted by
SMcLean
Please excuse my ignorance, but I've seen people making reference to something called "EF", through which upgrade availability can be viewed.
What is EF (and can anyone get it, or is it an AirNZ/Travel Agent programme)?

Hi SMcLean
EF = experflyer
http://www.expertflyer.com/
go and have a look, trial etc...
it is quite good but is expensive in my opinion