I'm trying to sort being able to use my phone while overseas. I'm not a OneNZ customer at present, but they seem to be the only cellco who can do VoWifi overseas, AND has a reasonably priced weekly roaming option ($8/day gets old fast).
(Spark: weekly roaming, VoWifi doesn't work outside NZ. 2degrees: daily roaming only, VoWifi does work inside NZ. MVNOs: no weekly roaming.)
As far as I can tell, the $22/wk roaming pack is only available on Prepay? On account/monthly customers have to stick with $8/day?
EDIT: my basic plan is to rely on VoWifi, but if it causes me too much grief I'd like roaming to be affordable.

