Royal Bank of Scotland executives "misled" MPs over the bank's treatment of small companies, Labour's Clive Lewis has told the House of Commons.
But Mr Lewis said he had a full copy of the Financial Conduct Authority's (FCA) report, which, he said, stated the bank's behaviour had been "systemic".
RBS said it would "strongly deny" that it misled MPs.
"The evidence we provided to the Treasury committee accurately reflected the bank's position.
"We are not clear on what basis the allegations are being made, but we would strongly deny the suggestion that we misled the committee," it said in a statement.