It was revealed in July that Mrs Bishop’s senior advisor Damien Jones held links with Bendigo political lobbyist Andrew Gibbs, who, at the time of the flights, was engaged by MyJet to handle its high-end business and political bookings. 

Mr Gibbs was Mr Jones’ best man at his wedding. Fairfax Media is not suggesting any improper conduct by Mr Gibbs or Mr Jones.

In a statement, MyJet said Mr Gibb’s company Primary Policy Partners’ 12 month engagement with the company ended in February.

“Mr Gibbs spent a total of three days marketing MyJet’s services to the federal government, which included the standard industry practice of providing a compendium of our services to members of the government, opposition and Parliamentary Travel office,” the statement read.

MyJet Aviation said it held no political affiliation.

“Since our inception, we have flown a range of government departmental groups, elected officials from a number of political parties, as well as clientele from the business and sporting communities,” the statement read.

The company said the notorious Melbourne-Geelong helicopter flight and a second flight two weeks later to the NSW south coast were the only times MyJet had been engaged by Mrs Bishop.  MyJet claimed to have submitted tenders for 26 quotes for federal government charter flights in the past 26, four of which it won.

Prime Minister Tony Abbott on Tuesday all but declared Bronwyn Bishop's political career over, following her resignation from the speakership. Mr Abbott said Mrs Bishop had paid the highest price by losing the job she loved, and agreed he would also personally pay a price for the expenses scandal that has dominated the national agenda for the past three weeks.

Some Liberal MPs have privately told Fairfax Media Mrs Bishop should not recontest her blue ribbon seat of Mackellar, which she has held since 1994. Phillip Ruddock and South Australian Andrew Southcott have both declared their intention to contest the position of Speaker.