Johannesburg - The Inkatha Freedom Party (IFP) and Freedom Front Plus (FF Plus) are expected to make submissions to the e-tolls advisory panel on Friday.
On Thursday, the Economic Freedom Fighters (EFF) questioned the need for the advisory panel.
EFF Gauteng caucus leader Mgcini Tshwaku said the panel was a waste of time and a misuse of taxpayers' money. He said the people of South Africa had spoken out and rejected the implementation of e-tolls long ago, effectively meaning the submissions being made were already in the public domain.
Tshwaku said the system affected mainly the poor and took food out of their mouths. The poor would also be forced to use roads full of potholes as they tried to avoid e-tolls.
The issue of the poor state of public transport was highlighted with Tshwaku saying many people were forced to use private cars because public transport was unreliable.
Earlier in the day, the Democratic Alliance (DA) told the panel the SA National Roads Agency Limited (Sanral) should make public all financial records involved in the e-tolls project.
Neil Campbell of the DA said the party had once asked for copies of records and it was told it could get any document it wanted, provided it paid R1m.
He asked what Sanral was hiding by demanding payment before people could have access to the documents.
He said there was no certainty of who benefited, and by how much.