11.—(1) Subject to paragraph (3), before a charging authority applies for a liability order it shall serve on the person against whom the application is to be made a notice (“reminder notice”), which is to be in addition to any notice required to be served under Part II and which is to state every amount in respect of which the authority is to make the application.
(2) A reminder notice may be served in respect of an amount at any time after it has become due.
(3) A reminder notice need not be served on a person who has been served under regulation 8(1) with a notice in respect of the amount concerned where there has been such a failure as is mentioned in regulation 8(2)(a) in relation to the notice.