Courier services around the country are being delayed as companies struggle with a surge in demand under alert level 3.
CourierPost and Aramex, formerly Fastway Couriers, are reporting delays of up to three days.
Aramex chief executive Scott Jenyns said volumes were down as much as 70 percent under alert level 4, but today it was back to business as usual.
He said there were "significant volumes coming from customers" who should be patient with the delays, which were due to social distancing measures.