The revelation came despite them losing a Federal Court case on Friday to gain access to secret details of Bain’s ‘winning’ proposal.
The extra service means that the airport is now welcoming almost as many flights as before the pandemic began due to its location in an open state.
The move comes days after the group also asked Australia’s takeover watchdog to intervene because they weren’t allowed to present their plan to creditors.
Broad Peak Investment Advisers and Tor Investment Management, representing the bondholders, are seeking an interim order to allow their own offer to be put to creditors ahead of a vote in August.
The message, also signed by six unions, asks the payment to apply to all workers in the industry and run until domestic and international borders open.