His alleged attackers also stole more $800 from him.
Hundreds of thousands of parcels are still waiting to be delivered, with Christmas fast approaching.
Gisborne posties have managed to deliver a letter with only a rambling eight-line address.
Every time New Zealand wins an Olympic medal, a special sheet of six stamps will be printed featuring images of the medal winners.
The Govt plans to keep its struggling NZ Post business despite the company shrinking and becoming more of a logistics business, Finance Minister Bill English says.
Govt-owned NZ Post is to cut 500 jobs over the next three months in an effort to save $50 million.
New Zealand Post has announced a six month after tax profit of $110 million. But it has voiced fresh concern about its mail and parcels business.
There are fears new electric vehicles, which will replace the traditional posties' bike, will cause mental and physical stress on workers.