I’m just guessing, but it sounds as if RPSC/NANA is attempting to ‘farm out’ the DA duties to a New Zealand company. I believe I know the reason for this (as does Mike), but I hesitate to vocalize it in this forum.
From what was written in that e-mail to you, sounds as though the NZ company is having problems organizing, and your chances for going down (especially in August) is good.
Continue on with the process. You’ll find out soon enough about ‘ice politics’. 🙂
Good luck to you.
P.S. Where are you from?