"Mr Twyford is engaged in a creative cut-and-paste exercise of the information released under the OIA, but I don't believe his claims have any validity," he said on Sunday night.
But the Labour MP said yesterday that nowhere in hundreds of pages of released documents was there any correction by Mr Brownlee's ministerial predecessor, Steven Joyce, of a letter which Snapper chief executive Miki Szikszai sent to Mr Joyce before the company received permission in 2010 to join the Auckland scheme.
Mr Szikszai wrote to the minister that he understood from a meeting with Mr Joyce that his "expectations" were that fellow Infratil subsidiary NZ Bus should be free to install Snapper machines in its 650 Auckland buses.
Mr Joyce's office said he was leaving any response on the issue to Mr Brownlee, as the minister now responsible for transport.
Mr Twyford said he intended writing to the Auditor-General whose office is conducting a "low-level" inquiry into the ticketing scheme.
Pricey fare
Total scheme cost $110 million
Cost to taxpayers $58 million
Cost to ratepayer $42 million
Cost to bus companies $12 million