Im arriving into auckland and have a connection to fly to to queenstown where we'll be starting our trip. I dont have the biggest amount of time in auckland, but probably enough in the airport to hit up a store if possible. From doing my research I think Im going to get a spark sim card(nano sim), and mainly all I care about is getting data , I dont really care about talk and text. Any suggestions for a place to buy a Spark Sim card, preferably some place I can do it quick? I would like to grab it in one of the airports, but I will have a rental car in Queenstown so its not the end of the world if it's not.