Ousted Greens Senator Scott Ludlam has vowed to appeal the Australian Electoral Commission's decision to refuse requests for a recount of WA Senate votes.
Senator Scott Ludlam had asked for a partial recount, after falling to a 14-vote margin at a crucial stage of the preference count.
The Australian Sports Party's Wayne Dropulich had requested a full recount after failing in his bid to scoop a Senate seat off the back of a series of preference deals.
But the AEC said the requests did not identify any specific issues that would have warranted a recount.
"As a result, the requests have been denied," the Commission said in a statement.
Mr Dropulich and Senator Ludlam can appeal the decision to the Electoral Commissioner before the declaration of the poll, which has been rescheduled for 11.30am on Friday.
If the result stands it will give the Palmer United Party its third Senator in the form of Perth businessman Zhenya 'Dio' Wang.
Labor's Louise Pratt has also been re-elected, alongside ALP factional leader Joe Bullock and Liberal Senators David Johnston, Michaelia Cash and Linda Reynolds.
His recount request rebuffed, Senator Ludlam's parliamentary career will come to an end in July.
Earlier, he had described the ballot as "worth a second look", given the tiny margin that cost him his seat.
He lost out when the Shooters and Fishers party claimed a 14-vote margin over the Australian Christians, at what the Greens described as "a crucial choke point" in the count.
Given the way in which preferences flowed, Senator Ludlam would have needed only eight more votes to keep his seat.
Senator Ludlam has also called for the Senate voting system to be reformed. His defeat came despite the WA Greens claiming third place in the primary vote.
"You should be able to vote above the line for the parties you choose. Then those pretend, shell parties would disappear like they were never there," Senator Ludlam told Sky News.
He called for a "proper, impartial" review of the voting system, and an end to "backroom shenanigans" over preference deals.
Greens leader Christine Milne said it was "only common sense" to call for a recount, when referring to a margin of 14 votes among some 1.25 million ballot papers.
She also said that Senator Ludlam would continue to work with the Greens "against Tony Abbott's excesses" after his Canberra tenure comes to an end.