Simon Gittany's girlfriend Rachelle Louise during her interview on <i>Sunday Night</i>.

Simon Gittany's girlfriend Rachelle Louise during her interview on Sunday Night.

Channel Seven has paid $150,000 to Rachelle Louise, the girlfriend of killer Simon Gittany, for a two-part Sunday Night interview, according to industry insiders.

It is a figure that has since been disputed by Seven, however, when challenged, the network refused to reveal how much it paid for the interview.

Louise was interviewed on the network's current affairs flagship on Sunday by journalist Ross Coulthart.

Simon Gittany and his girlfriend, Rachelle Louise, leave Darlinghust Supreme Court. Gittany is on trial for the murder of his previous girlfriend, Lisa Cecilia Harnum.

Simon Gittany and Rachelle Louise. Photo: Janie Barrett

Since then Gittany has been jailed for at least 18 years after being convicted of throwing his former girlfriend, Lisa Harnum, from the 15th floor of his Sydney apartment block.

Seven has also signed up Harnum's mother, Joan, who told reporters after the sentence was handed down that, “regrettably”, she couldn't make any comment because of the exclusive deal with the network.

Insiders close to the negotiations added that there was no “auction” for Louise's story. It was suggested she chose to go with Seven because it might be more favourably disposed to her position than the other networks.

However, Seven included in the program new recordings that showed Gittany in a very negative light.

Seven has confirmed that a second part to the interview with Louise will air on Sunday. The network confirmed it was still conducting interviews today for the program. But Seven is now left with a scheduling headache because it also wants maximum impact from its Schapelle Corby interview, for which it has reportedly paid in excess of $2 million.

Chequebook stories: (these figures are not definitive)

$2.6 million In 2006 Nine pays Beaconsfield miners Todd Russell and Brant Webb for a two-hour special with Eddie McGuire.

$250,000-$400,000 Engineer Douglas Wood talks to Ten about being held hostage in Iraq for six weeks in 2005.

$250,000 In 1986 Lindy Chamberlain talks to 60 Minutes about her daughter Azaria being taken by a dingo.

$200,000 Bob Hawke and Blanche D'Alpuget grant interviews with 60 Minutes, in a 1995 deal engineered by chequebook journalism mastermind Max Markson.

$200,000 In 2005 Mamdouh Habib gave 60 Minutes an interview following three years held in captivity as a terrorist suspect by the US.

$100,000 James "the Iceman" Scott spoke to 60 Minutes about his 43-days stranded in the Himalayas in 1992.

- with Sarah Thomas