I have a modem I purchased in Italy can I use it in New zealand? Also if I purchase both the sim card for the phone and a data plane for the modem can I pick them up at the airport in Auckland when I arrive?
If you're referring to a mobile broadband modem that operates on the mobile network, the device would first need to be unlocked, and it would also need to support the frequency bands our network uses. These can be found here: http://help.vodafone.co.nz/app/answers/detail/a_id/21804/~/what-are-the-vodafone-nz-mobile-network-f...
The store at the airport generally just sells prepaid travel sim cards, more info can be found on them here: http://www.vodafone.co.nz/travel-sim/
If you're staying in NZ longer than 60 days, it may be worth looking at our regular prepay options which are available from any of our other stores except the airport stores.