She has confirmed that she had to make a special request to the president to defer her effective date as a judge to allow her to finish her work at Prasa
Justice Raymond Zondo said more and more witnesses implicated in serious allegations are making excuses not to appear the commission.
Makhubele appeared at the State Capture commission where she was accused of using the Stalingrad approach to avoid testifying.
Judge Tintswalo Makhubele was expected to answer to allegations of misconduct during her time as the board chairperson of Prasa.
Deputy Chief Justice Raymond Zondo on Monday said the judge had had ample time to prepare and did not have good reasons to ask for another date.
Former Prasa interim chairperson Tintswalo Makhubele was reacting to the claims made by Zachie Achmat following a Western Cape High Court ruling on Friday.
Prasa has confirmed the resignation, saying Makhubele has overseen the interim board during "turbulent times."
Makhubele was appointed as a High Court judge by former President Jacob Zuma last year effective from 1 January.
Members of the board have appeared for the first time before Parliament's transport portfolio committee meeting on Friday, since their appointment by Cabinet last month.
