NZ post are a disgrace.
Had a parcel arrive from China, we tracked it all the way here to NZ post.
NZ post claimed they delivered our parcel and left it in the letterbox and had a photo of it to prove it, this was a 30 piece crockery set left in the letter box, suffice to say they never showed us the photo they admitted having possession of the parcel, however we had to raise an issue with the shipper, even though the shipper had done their part.
Customer service was horrendous and dismissive with it is not our problem attitude, we have never received any compensation or so much as an apology.
I would suggest using a reputable courier in future... You suck NZ post. I will endeavour to never ever use you again