6. A notice under Article 29(1) shall cease to be in force—N.I.
(a)if the person by whom it was served withdraws it by a further notice to the Department; or
(b)if—
(i)any instalment is not paid on or before the date when it is due; or
(ii)the Department is satisfied that the person aforesaid is no longer qualified to serve a notice under Article 29(1) in respect of the hereditament in question,
and the Department serves notice on that person that, by reason of the default or, as the case may be, his ceasing to be so qualified, the notice under Article 29(1) is being treated as cancelled;
and upon the service of any notice under this paragraph any amount due by way of rates in respect of the hereditament shall be recoverable as if no notice had been served under Article 29(1), without prejudice, however, to the right to serve a fresh notice under Article 29(1) in accordance with paragraph 1( a).