Michael Matheson has been urged to deliver another statement to parliament as a “significant” number of questions remain “wholly unanswered” over his £11,000 data roaming bill.

The Scottish Conservatives are set to push for time to be set aside this week for the beleaguered Health Secretary.

Last week, Mr Matheson blamed his teenage sons for the eyewatering charge.

READ MORE: Yousaf insists Matheson a 'man of integrity' despite data roaming lies

He told MSPs that the boys had been watching football during a family trip to Morrocco at the start of the year.

Mr Matheson claimed he only learned about their use of his parliamentary iPad on Thursday 9 November, following days of media scrutiny over the staggering expenses claim.

However, on Monday 13 November, when asked directly if there was "any personal use" of the device during the family holiday, he told reporters: "No”.

When asked if anyone else could have used the device, he, again, said, "No".

Parliament first confronted Mr Matheson over the bill in February, however he seemingly insisted the charges related solely to parliamentary work, with Holyrood accepting his explanation and allowing him to use expenses to fund £3,000 of the bill.

The parliament was then set to pay the £7,935.74 balance.

When details of the bill were first uncovered at the start of November by the Daily Telegraph, Mr Matheson’s spokesman blamed an old SIM card.

It was only Friday 10 November after he learned about his sons' use of the device that he and the family said they would pay the full charge.

In his personal statement to the Scottish Parliament, he said he informed the First Minister of the truth on Tuesday 14 November.

The following day, Mr Yousaf said the matter was “now closed".

READ MORE: DANI GARAVELLI: Matheson undermined Holyrood and humiliated those he loves the most

Scottish Conservative Leader Douglas Ross said the government was clearly hoping the “scandal will just go away.”

He said: “Michael Matheson might have run up this eye-watering bill, but he cannot continue to run away from this scandal.

“He – and the other most senior members of the SNP Government – spent the weekend largely avoiding scrutiny and clearly hoping this scandal will just go away.

“That is wishful thinking when we know that the health secretary lied to the press and public over whether this parliamentary device had been used for personal purposes."

The Herald:

The Scottish Tory leader added: “His personal statement last week allowed a severely limited time for questioning. A significant number of questions remain wholly unanswered.

"That is why my party is calling for a substantial amount of Parliamentary time to be set aside to allow Michael Matheson to make another statement and for us to be allowed extensive questioning to get answers.

“The public has lost confidence in the Health Secretary at a time when our NHS is bracing itself for its worst winter ever.

"The whole government is distracted by this scandal, with Michael Matheson cancelling visits and interviews last week because he doesn’t want to be questioned on this.

“Until he resigns, or Humza Yousaf does the right thing and sacks him, my party will continue to use every method possible in Parliament to hold Michael Matheson to account for his lies and lack of answers.”

A spokesman for Mr Matheson said: “Mr Matheson is focused on his responsibilities as Scotland’s Health Secretary ahead of what is expected to be a challenging winter for the health service.

“Last Thursday, Mr Matheson announced an additional £3.6 million of funding to preserve the existing Community Link Worker programme within Glasgow City Health and Social Care Partnership.

“Today, the Health Secretary is chairing NHS Forth Valley’s annual review, meeting with local NHS staff and members of the public to hear directly about the issues affecting them.

“The Scottish Parliament’s timetable is a matter for the parliamentary bureau – the Conservatives have their own opportunities to bring issues forward.”

READ MORE: Robertson backs Matheson to stay Health Secretary 'for very long time'

Speaking to BBC Radio 4’s Broadcasting House programme on Sunday, the First Minister was asked if he thought Mr Matheson had misled him.

He said: "Michael had only used the iPad for parliamentary purposes. He obviously spoke to his family when the bill first came out and had been given assurances it wasn't used for any purposes.

"Look, I've got teenage kids myself. I think anybody that does have teenage kids will know, I'm afraid, from time to time when they do something they shouldn't, they'll try to cover their tracks in the first instance.

"I know Michael's boys well, and I've known them for many years, they're no different to any other teenagers in that respect.

"When Michael, of course, found out the truth, which was towards the end of last week, he immediately decided alongside his wife to repay the full amount to Parliament.

"There's a legitimate question that people have asked and Michael addressed this last week around whether he at that point should have been upfront publicly, around the fact that what was the reason that he was choosing to repay the entire bill."

Mr Yousaf said Mr Matheson's lie was because he was trying to "protect his children from media scrutiny and media spotlight."

The SNP leader said the minister had been confronted by journalists at his £400,000 home in Glasgow.

"That's not an intrusion that any of us would like," Mr Yousaf said.

"Look for me, Michael, who I've known for well over 15 years is a man of integrity and honesty. He should have handled the situation better, Michael knows that."

Asked again if Mr Matheson had misled, Mr Yousaf replied: "No, no, I don't believe Michael did."