In fact, Fairfax Media reported the au pairs employed by the family had been paid $187 per week gross cash wages, or $150 a week after tax, plus room and board worth $300 a week, which equates to $3.75 an hour cash wages for a standard 40-hour week. Richard Di Natale and his wife, Lucy Quarterman, on their farm. Credit:Damien Pleming The Senator argued his au pairs worked "approximately" 25 hours a week and were paid $487 total gross wages based on the advice of an employment agency, which meant they received the minimum wage - as Fairfax Media had reported. But four days after telling ABC radio he would "absolutely" release documents and that "I'm sure we can release the document" relating to the employment of the au pairs, the Greens leader has failed to do so. "Time sheets were not kept. The hours worked were calculated based on Lucy's [Senator Di Natale's wife] part-time work. She did not work on weekends. The hours worked were up to 25 hours per week," the spokesman said on Monday.

He offered to provide documentation that showed the Greens leader had sought advice from an employment agency on the hiring of the nanny. Opposition spokesman for Employment Brendan O'Connor. Credit:Andrew Meares But 24 hours later, on Tuesday morning, the advice has still not been released. Labor employment spokesman Brendan O'Connor said it was time Senator Di Natale - who has been campaigning on the issue of penalty rates and has vowed to legislate to protect them - to "deliver on his promise to release all documents relating to the employment of young workers in his home". "Last week it was revealed the Greens Party leader was paying these workers as little as $150 per week. Couples were offered just $75 each. On ABC radio last week he claimed this was "over and above" minimum wage once the value of accommodation, food and other sundries were taken into account," Mr O'Connor said.

Mr Di Natale also claimed that a "specialist employment agency" advised him this package was valued at "just under $500" and was "over and above" minimum wage. He promised to release documentary evidence that these arrangements were above board." "Several days have passed yet Mr Di Natale has failed to produce those documents. The deadline has well and truly passed. It is time for him to come clean." Follow us on Twitter Follow James Massola on Facebook