Prime Minister Bill English is being challenged to front up and "tell us what you know", as outrage over the Todd Barclay tape scandal continues.

Appearing on Breakfast on Monday morning, host Hilary Barry grilled the PM over his contradictory statements in relation to the scandal.

"You keep saying these things that are at odds with each other, you said there's no proof that this recording actually existed and then the next day you say, oh actually, Todd Barclay offered to play it for me," Barry said.

"It's almost like you need to just front up and tell us what you know, very clearly, instead of drip-feeding these contradictory statements."

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English did not feel he was drip-feeding contradictory statements, and said the employment dispute had been settled, with Barclay making his own decision about his career.

Last Tuesday, an investigation by Newsroom.co.nz reported Barclay staffer Glenys Dickson was paid hush money after learning of a dictaphone left running in the Gore office.

The prime minister, who previously had kept himself away from the scandal, was forced to release his statement to police in relation to the dispute.

Over the weekend he shifted his story, saying he wasn't sure whether a recording existed in the first place.

But at the weekend, at the National Party conference in Wellington, despite still not being clear on whether a recording existed, English confirmed to media that Barclay had offered to play it to him.