Baker Tilly said: "As this matter is currently under inquiry by the FRC, it would be professionally inappropriate to comment at the present time".
And moving the Financial Reporting Council (FRC) when it has planted its feet in the ground sometimes feels like trying to push a stubborn elephant up a steep hill.
In a letter published on Tuesday, the FRC said it would consider extending the time period it was investigating and might look into companies connected to BHS if evidence suggested it should do so.
The FRC said it would digest Thursday's update and continue to gather information to determine whether it should take regulatory action.
Its announcement came shortly after the accountancy regulator, the Financial Reporting Council (FRC), revealed it was investigating individual accountants and two firms in connection with the auditing of Quindell's accounts from December 2011 to June 2014.
The FRC indicated it might support primary challenges against them.
The FRC said it would "consider the commission and FSA reports to identify whether there is a case for an investigation under our powers".
The FRC said it asked Rees to investigate after reading a report by financial regulators into HBOS's collapse published in November.
In the latest blow to the ailing retail group, the Financial Reporting Council (FRC) said it would examine the role of PwC as well as the behaviour of individuals at the auditor and at Tesco in relation to the preparation, approval and audit of accounts going back to February 2012.
Last week, the UK accountancy regulator, the Financial Reporting Council (FRC), said it was "monitoring the situation closely", but would not act until Tesco's own investigation was completed.
