Steve ‘Commando’ Willis and girlfriend Harika call the police after heated clash with an old client

A personal training client who was filmed getting into a heated argument with celebrity coach Steve ‘Commando’ Willis over alleged outstanding fees claims she doesn’t owe the former Biggest Loser star a cent.

Video footage went viral this week showing Willis and his new girlfriend, F45 trainer Harika Vancuylenberg, getting into a confrontation with his former client Margaret in Sydney’s northwest.

The 43-year-old former reality star claimed Margaret owed him $1350 in unpaid personal training session fees, but she has since come forward to Daily Mail Australia to vehemently dispute the debt.

But Instagram messages supplied to Daily Mail Australia by Margaret appear to contradict her claims that she had already settled her debt. 

Margaret was filmed approaching Willis and Ms Vancuylenberg as they packed equipment into their car following a group fitness session on Sunday.  

‘You are not engaging with him. You pay him what you owe him,’ Ms Vancuylenberg screamed at Margaret in the footage.

‘No money, no talking! He has told you $1,300. That is what you owe him. 

Legal matter: The Biggest Loser star Steve ‘Commando’ Willis (left) and his girlfriend, Harika Vancuylenberg (right), called the police following a row with a former personal training client of his on Sunday. Pictured together in Sydney’s north-west on May 18

'I paid him, I have record': Steve, 43, was confronted by Margaret about a dispute regarding her alleged outstanding fees in Caddies Creek Reserve in Sydney

‘I paid him, I have record’: Steve, 43, was confronted by Margaret about a dispute regarding her alleged outstanding fees in Caddies Creek Reserve in Sydney

'No money, no talking': Video footage showed Steve's girlfriend, Harika (pictured), stepping in on his behalf, claiming Margaret, a former client, owed him $1,350

‘No money, no talking’: Video footage showed Steve’s girlfriend, Harika (pictured), stepping in on his behalf, claiming Margaret, a former client, owed him $1,350

Margaret responded: ‘If you don’t agree we can go to court, because I have the record that I paid you.’ 

Margaret – who wished for her last name not to be published – insisted she had already paid Willis, who has been training her since April last year and provided Daily Mail with Instagram messages. 

‘Until this is done there will be no further training,’ Willis wrote in one message. 

The back-and-forth between the pair continued, before Margaret asked Willis to meet up with her face-to-face to pay him in cash.

‘No Margaret – you have one hour to transfer the money,’ he said.

Margaret responded: ‘I didn’t say or mean I’m not paying you – you just get angry and [run] away.’

Leaked messages between Steve 'Commando' Willis and his former client Margaret show the former Bigges Loser trainer ask for unpaid fees

Leaked messages between Steve 'Commando' Willis demanded $1350 in unpaid fees

Margaret – who wished for her last name not to be published – insisted she had already paid Willis, who has been training her since April last year

Leaked messages between Steve 'Commando' Willis and his former client Margaret

Leaked messages between Steve 'Commando' Willis and his former client Margaret

Instagram messages supplied to Daily Mail Australia by Margaret appear to contradict her claims that she had already settled her debt

Margaret, who saw Willis two to four times a week since last April, claims she paid Willis in cash at the start of every session. 

In messages to Margaret on May 20, Willis claimed she owed him for two $200 for each personal training session on the April 17, and April 21, May 1, May 4 and May 5.

Margaret continued to ask to meet up with Willis face-to-face to pay him in cash, but Willis insisted she simply bank transfer the unpaid money and call it a day.  

The fitness lover said the public spat broke out shortly after she drove to the public reserve to confront Willis about the payments.

‘When I parked my car in the car park and still in the car, Harika sent her two kids, a boy and a girl, to come around my car to check me,’ she claimed.

‘There was nobody else around my parking spot so it was very obvious. I didn’t want to get involved with any kids. So I drove off to get a coffee. 

‘When I came back I parked in a different spot, I saw in my mirror that Harika came to the rear of my car and started to take photos of me when I was sitting inside.’

Margaret said this is when the confrontation was sparked, before she pulled her phone out to film the incident. 

Margaret was filmed insisting to the couple that she had paid what she owed Willis. 

‘No, I paid him. I have record,’ she said as she filmed the dispute.

‘This is my business. Go away,’ Willis said as he attempted to end the exchange. 

The former Biggest Loser coach is yet to confirm his relationship with Ms Vancuylenberg, who works as a trainer at popular fitness franchise F45

The former Biggest Loser coach is yet to confirm his relationship with Ms Vancuylenberg, who works as a trainer at popular fitness franchise F45

'This is my business, go away': Harika threatened that Steve (pictured) would take legal action against Margaret after he told her to 'go away'

‘This is my business, go away’: Harika threatened that Steve (pictured) would take legal action against Margaret after he told her to ‘go away’

Ms Vancuylenberg told Margaret that Willis would take legal action.

‘We don’t want you in our lives, okay? Pay him what you owe otherwise I will take you to court myself for harassment,’ she said.

The F45 tranier then claimed that she caught Margaret taking photos of her while working out at the gym, which she denied.

‘You’re showing up here in my business, go away. Margaret, get out of my face,’ Willis said.

The tense argument lasted for over two minutes until Willis and his girlfriend got into their car.

NSW Police confirmed to Daily Mail Australia that a complaint had been made to The Hills Police Area Command on Sunday following the incident.

Management for Willis declined to comment, saying the matter was now with the police.

The former Biggest Loser coach is yet to confirm his relationship with Ms Vancuylenberg, who works as a trainer at popular fitness franchise F45.

They were recently pictured holding hands in Sydney, following his break-up with Michelle Bridges in December after eight years of dating.

It has been reported the pair met in November on a fitness retreat in Tahiti, but did not start dating until February, after he’d split from Bridges. 

Relationship: Steve is yet to confirm his new relationship with Harika. He split from ex-partner Michelle Bridges in December. Pictured together on July 15, 2017 in Sydney

Relationship: Steve is yet to confirm his new relationship with Harika. He split from ex-partner Michelle Bridges in December. Pictured together on July 15, 2017 in Sydney