Hi newarrival (yet a senior member :P),
There are specific requirements like:
1. Should get married within 3 months of getting the CAMVV in NZ or overseas.
2. Should apply for CAMVV within (after) getting married overseas.
3. Should prove that the marriage indeed is arranged by someone other than me or my partner (like a family member or a matchmaker) and follow an identified cultural tradition.
Thanks