A Treasury spokesman has said that the sale of Northern Rock "represented good value for money."
He said: "We will provide a full response to this report in due course.
"The decision to nationalise Northern Rock in 2008 was taken in the interest of financial stability.
"The sale of Northern Rock plc to Virgin Money last year represented good value for money for the taxpayer, and has helped increase high-street competition."
More top news
Shoppers in the UK are expected to spend almost £1bn online tomorrow for Cyber Monday as a weekend of discounts comes to an end.
Fresh from his straight sets victory, Murray confirmed he would play in the opening tie against Japan next year.
German Chancellor Angela Merkel said in return the EU would speed up visa-free travel for Turks and its efforts to join the 28-nation bloc.