Hello, I´m from Germany. I will arrive in Auckland on 1st of January. WIll be in need of a prepaid sim card. Have seen the 10 GB package including phone cals and social media is reduced to 59,99$ (orig. 99,99$) Can i buy this offer also on 1st of january in a vodafone shop at the reduced price at the airport as i will not be able to receive deliveries.