Hi
I'm not a Kiwi, I didn't have private health insurance so I paid cash for mine ($14,000+) by accessing my superannuation, which you can do here if you have a medical necessity. I am sure there would be a similar process in NZ if you have super. Worth a try if possible.
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Lynette

Approx Current Body Fat = 36% (changes daily)
Goal 1: Under 100kg -
Achieved 27/5/09Goal 2: Under 90kg (198pounds)
Achieved 11/11/09Goal 3: Under 80kg (176pounds)
Goal 4: 75kg (165pounds)
Goal 5: 65kg (143pounds) (BMI Healthy weight)
Surgeon: Dr Padovan[/i]