Hi Skinny,
I manage to get an invite to purchase one of the popular OnePlus One Sandstone Black 64GB Model A0001 and to my surprise after inserting a skinny SIM into the device, the only available network operator after searching are: Telecom NZ (not Spark), Vodafone NZ and 2degrees. And calling to your helpdesk person, she say that device is not supporting on our network. That is un-acceptable as Skinny network is operating on Spark 3G and 4G network and OnePlus One device frequency band meets all of your network specification. To my knowledge this should be an easy fix as all is required is to add this device to your mobile device management platform to enable basic mobile service like calling, texting, data and roaming. I don't know how long I have to wait and maybe the only way for me is to number port to other network providers and find out if my new OnePlus One work until I find one that does. Hope you can provide me a solution here.
Cheers
FC