Where, at commencement, an auditor has been disqualified pursuant to section 111(3) of the Financial Services Act or section 21A(5) of the Insurance Companies Act, the disqualification has effect after commencement as disqualifying the auditor under section 345 from acting as auditor for any person -
(a) for whom he was disqualified from acting immediately before commencement; and
(b) who is an authorised person on commencement.