The Stormont assembly is unable to confirm whether Caitríona Ruane pledged to give her principle deputy speaker's wages to charity.
The former Sinn Féin education minister resigned from the £55,000-a-year post on Thursday when it became public that she was still claiming a salary – even though she stepped down as an MLA in March and the assembly has not sat since January.
It was confirmed yesterday that Sinn Féin has not received a penny from Ms Ruane's salary since she gave up her South Down seat, despite a policy that sees elected representatives give all earnings over and above the 'average industrial wage' to the party.
In her resignation statement on Thursday night the former education minister claimed her earnings would be donated to a range of charities.
"I can confirm that I have donated the monies received to charities and community groups including an Irish language group, a group for the elderly, an LGBT group, and a charity for children with disabilities," she said.
Ms Ruane said her pledge to give the money away was "put on record with the assembly last March".
But the assembly was unable to confirm this yesterday, saying it "does not comment on any discussions relating to the salary or private financial affairs of an MLA" – even though the controversy around Ms Ruane's salary stems from the fact that she is no longer an MLA.
The Irish News also asked the former South Down representative, who Sinn Féin say remains a party member, to list the charities to which she had given money to, but no response was forthcoming.
On Thursday, it also emerged that the SDLP's Patsy McGlone is receiving an extra payment as deputy speaker, whereas his Ulster Unionist counterpart Danny Kennedy resigned from the post when he lost his Stormont seat in March's election.
The Irish News has previous reported how Assembly Commission member and former SDLP MLA Alex Attwood continues to receive a salary but is endeavouring to pay it back.
Assembly speaker Robin Newton continues to receive £38,000 a year over and above his MLA's salary of £49,000.
