OK so I've got a Sony Xperia Z1, had it since September 2013. Was and still is under a 2 year contract with Vodafone UK (just using a Voda NZ SIM in it at the moment). Warranty lasts until Oct 2015 according to the Sony website.

The battery was acting up and its performance very poor lately. Now since the last few days the battery has pretty much died.
After charging the phone to 100% overnight I am lucky to be able to run it for more than 1 hour.It will then switch off and need another full charge. Today I had to charge the phone 4 full charge cycles in order to keep it going.

I've measured the mAh capacity with some tools (via Android kernel) and although the Z1 is specced to have 3000mAh capacity, the phone tends to switch off between 1500 and 1800mah, sometimes even less.

My conclusion is that the battery has had it and needs replacing. Problem being that the Z1's battery cannot be replaced by the end-user.

Normally speaking I should contact Vodafone UK to replace the handset as its still under warranty, problem being that I have now moved to NZ and shipping would be a pain ( I will be without a phone for a VERY long period ).
Is there a Sony Xperia repair facility in NZ?
I doubt Vodafone NZ will be able to offer any services in terms of repair.