(1) Subject to subsection (2) and section 15H(5), a prohibition notice shall cease to have effect on and from the earlier of the date on which -

(a) the competent authority issues a written notice to the notified undertaking stating that the prohibition notice is withdrawn, or

(b) the court under section 15AY or 15AZ, as the case may be, confirms the decision of an adjudication officer under section 15X on the matter to which the prohibition notice relates.

(2) Where a prohibition notice was issued in error, or subject to a material error of fact or law, the competent authority may issue a written notice to the notified undertaking stating that the prohibition notice is cancelled, and a prohibition notice in relation to which notice under this subsection is so issued shall be deemed never to have been issued.