In written evidence to MPs investigating the excessive pay-offs to BBC senior staff, former Director General Mark Thompson accused the BBC Trust of making "misleading" statements.
Mr Thompson also said that contrary to her initial evidence HR director Lucy Adams was one of the authors of a note detailing plans for pay-offs to deputy director general Mark Byford and marketing boss Sharon Baylay.
Ms Adams has since admitted making a mistake in her evidence and confirmed "that I was involved in drafting that memo".
The BBC's head of HR, Lucy Adams, has admitted making a mistake in her evidence to a committee of MPs investigating excessive payoffs.
A spat has broken out between ex-BBC chief Mark Thompson and the Trust over large payoffs to departing staff.