Hi there, just to clarify... when I called AirNZ the other day I actually simply asked if there was an alternative booking reference or similar for the codeshare flights. Due to the response they gave and after a wee bit of googling, I decided to come on here to query if I should be using a term such as 'Galileo' (or similar) as I know this place is a wealth of knowledge.

I'm happy to report that I've just rung up AirNZ and asked the same simple question about an alternative booking reference and this time got one straight away. I didn't need to ask anything different or ask for PNR etc but thanks to you all for your helpful responses as now I know those terms for future reference