No excuses for taking a weeks to get warranty parts from overseas. I often wonder if they only put in a parts order once or twice a month. When I worked at a IT parts wholesaler, the parts we ordered privately from Aus would arrive THE NEXT DAY. Doing Warranty repair work, on behalf of a well known manufacturer, we had to wait for them to supply the warranty parts, would usually take at least 1 month, often much longer.
Fast turnaround can be done, yet some Manufacturers just dont do what it takes , it takes only minimal effort Its not the fault of the local techs, often not the fault of the NZ Branch of the manufacturer either.