An investigation has been launched into the National Anti-Corruption Commission over its refusal to investigate referrals from the Robodebt Royal Commission.

The Albanese Government is refusing to disclose key findings of a corruption probe into the corporate regulator that were secretly deleted under former Treasurer Josh Frydenberg.

Attorney-General Mark Dreyfus used fudged data to justify implementing the almost entirely secret National Anti-Corruption Commission, vastly understating the amount of NSW anti-corruption hearings held in public.

Disgraced consultancy PwC and its offshoot Scyne Advisory are currently undertaking 46 Federal Government contracts valued at $138 million, it has been revealed.

The identity of major anti-Voice donor remains hidden from public – and the corporate regulator is inexplicably refusing to act.

A secretive "review" by the Department of Finance paves the way for PwC Australia's partners to unlock the profits from tens of millions in taxpayer contracts.