The Inland Revenue may amend a notice given under paragraph 2 so as to correct obvious errors or omissions in the notice.

A correction under this paragraph is made by notice to the employer company.

No such correction may be made more than nine months after the day on which the notice under paragraph 2 was given to the Inland Revenue.

A correction under this paragraph is of no effect if the employer company within three months from the date of issue of the notice of correction gives notice rejecting the correction.