12If at any time after the Secretary of State has served a notification on the trader in pursuance of paragraph 8 of this Schedule the Secretary of State decides not to serve a notice on him in consequence of the notification, it shall be the duty of the Secretary of State to inform him of the decision; and after the Secretary of State informs him of the decision the notification and anything done in consequence of it in pursuance of the preceding paragraphs of this Schedule shall be disregarded for the purposes of those paragraphs.