She said people should be able to see that the process being used was robust.
Asked if there had been a failure of a duty of care, Ardern said the Government had an expectation for TVNZ to follow processes needed in a modern workplace, but it was up to the broadcaster to put those into practice.
"What makes a big difference to people is their wellbeing in a place they spend the majority of their time."
Ardern also commented on Inland Revenue's attempts to track down bank details for about 160,000 people who are eligible for the new cost of living payments, which start from August 1.
It will give $350 paid out over three months to all those on incomes of less than $70,000 – an estimated 2.1 million people.
It will be paid out automatically but Inland Revenue has struggled to get bank account details for about 160,000 people.
Ardern said the payments would be particularly useful for households in which there were two earners on less than $70,000 - the payment does not take into account household income. Ardern said basing it on individual incomes meant it could start to be paid more quickly. She urged people who were eligible to check that Inland Revenue had their bank details.
It is a key plank of Labour's response to high inflation, along with temporary cuts to fuel excise duties which have now been extended to next January.