She sparked controversy last month for posting a distasteful Instagram photo of the late singer Amy Winehouse congratulating her for being 'five years sober'.

And Real Housewives of Sydney star Lisa Oldfield has once again caused a stir by claiming her Melbourne rivals all married for money.

In an interview with The Daily Telegraph, the 41-year-old also said the upcoming spin-off will be more popular than Real Housewives of Melbourne.

Scroll down for video

Now she ain't saying they're gold diggers! Real Housewives of Sydney star Lisa Oldfield has claimed the Real Housewives of Melbourne cast members all married into money

'We haven't got any women who have married their money in it,' she said, before explaining she works full-time in the technology sector.

It's the latest blow in the so-called rivalry between the Sydney and Melbourne casts, which has been playing out in the media over the past few months.

Back in July, Lisa took a swipe at RHOM, saying: 'I wouldn't compare myself to any of those girls. The benchmark is so low.'

'The benchmark is so low': Back in July, Lisa took a swipe at RHOM, saying: 'I wouldn't compare myself to any of those girls. The benchmark is so low'

Burn! Melbourne star Gamble Breaux responded on social media, calling Lisa a 'stupid old cow' and 'Anne Winters wannabe', referring to Vogue editor Anna Wintour

'The best thing that came out of Melbourne is probably Underbelly so really we are starting very low,' she added.

Melbourne star Gamble Breaux later responded by calling Lisa a 'stupid old cow' and 'Anne Winters wannabe', referring to Vogue editor Anna Wintour.

Lisa is married to controversial former politician David Oldfield, who helped Pauline Hanson found the right-wing party One Nation in the 1990s.

Famous face: Lisa is married to controversial former politician David Oldfield, who helped Pauline Hanson found the right-wing party One Nation in the 1990s

Meanwhile, fellow Sydney Housewife Athena Levendi has also slammed the Melbourne cast.

Speaking exclusively to Daily Mail Australia, she said: 'The Melbourne Housewives to me look like retired casino waitresses.'

'They lack decorum,' she concluded with a laugh.