On Monday Labour Party president Nigel Haworth invited the complainants to appeal the findings of the party's internal investigation.
Today he told the Herald that Maria Dew, QC, would hear those appeals.
The party would also fund legal advice and emotional support, but a person associated with the complainants, who did not want to be identified, told the Herald that support was "too expensive for them six months ago".
"This process has never once been victim supported. I see it as a way to silence us, not allow us to feel heard," the person said.
"At the moment, things feel like it's all a part of the cover-up."
Bennett said she was told by complainants that they didn't think Labour's response was good enough.
"They feel it's just more of the same, a policy and process conjured up on the hoof without any consideration given to how an appeal process should be run."
Bennett said they believed the final decision would still ultimately rest with the party's ruling New Zealand council, which they felt had been influenced by the alleged perpetrator and those supporting him.
The complainants had yet to decide whether they would take up the offer to appeal, she said.
Haworth declined to comment further.
"We need to allow the appeal process to run its course and we want be making further comment until any appeals are completed."
On Tuesday Ardern said that the party could have handled the complaints better.
"It hasn't been dealt with as well it could have," Ardern told NewstalkZB.