Plymouth Argyle's administrators have urged the preferred bidders to confirm they will buy the club by mid-August.
Bishop International Ltd have also been asked to submit funds for August wages.
"We have no money for the start of the new football season and we have to pay wages at the end of the month," said joint administrator Brendan Guilfoyle.
"Without this requested funding the administrators will have difficult decisions to make about the options they have left."
The consortium have met all the financial commitments that they were obliged to but the original hope six weeks ago was that the deal would be done by the start of the new Football League season on 6 August.
The club's players and staff have not been paid in full for eight months and the club went into administration earlier this year.