The Engineering Printing and Manufacturing Union says there is no need for drastic cuts to New Zealand Post's mail delivery.
EPMU national industry organiser Joe Gallagher said NZ Post was a vital public service and there was no justification for reducing mail delivery to three days a week.
NZ Post says if it didn't receive Government subsidies it would have to slash mail delivery services in half.
"Any talk about subsidies at this stage is pure speculation and scaremongering. NZ Post is actually returning a profit and will continue to do so for some time even without any changes.
"We recognise NZ Post faces serious commercial pressures, but current mail volumes do not justify the drastic and damaging cuts that are being proposed. This proposal only makes sense if you believe NZ Post exists purely to return a profit."
