its only available in certain places at this stage, Orcon is offering it at these locations.. you could try having a look at their website and chuck in your address and see if its available in your area via Orcon? 

Hi there,

I have no detail to share regarding Hyperfibre coming to Slingshot right now, but our other brand Orcon was the first telco out of the gate with our Fibre 4000 plan!

Chuck your address in here to see if you can get Fibre 4000: https://www.orcon.net.nz/broadband/fibre4000 - otherwise check out Chorus' rollout schedule here: https://hyperfibre.chorus.co.nz/hyperfibre-rollout.

Cheers,

Cam