Looked at my mobile bill last month and there was a $64 10 minute call from Aus to NZ......

Yes... that is like $6 per minute.... from Australia!

Turns out my phone had decided to roam on Optus instead of Vodafone for that call.

While AU-NZ on Vodafone AUS is $.49/min making the same call on Optus or Telstra is a mind numbing $6 odd per minute!.

Moral of the story is work out how to show the carrier name on your mobile... and make sure you look before you leap!