Just saw this on there website

 
Get double minutes for the life of your Smart plan*, ask us how today.

Smart3

• $81.75 per month on a 24 month plan


• 240 anytime minutes (usually 120)


• 600 TXTs to any network


• 250MB data

Smart4

• $132.85 per month on a 24 month plan


• 500 anytime minutes (usually 250)


• 600 TXTs to any network


• 500MB data

*Vodafone On Account connection terms and conditions apply, see vodafone.co.nz for details. Double minutes offer available to new customers and existing customers who are re-signing on any Smart plan. Offer not available for customers who plan transfer during the existing plan term. Double minutes will apply for the life of your Smart plan while you remain on that plan. Offer end date 30 June 2011. For full terms and conditions see vodafone.co.nz