If money has been paid to an enforcement agency in expiation of an alleged offence and the relevant infringement notice is withdrawn or the enforcement agency otherwise comes to hold surplus money in relation to an infringement notice issued to a person, the money is to be dealt with as follows:
(a) if the same person is the subject of another infringement notice issued by the same enforcement agency and the amount payable under that infringement notice has not been paid within the period specified – the money that is being held by the enforcement agency may be credited against the amount owing for the overdue notice;
(b) if there are more than one overdue infringement notices – the money may be credited against the oldest notice;
(c) if there are no overdue infringement notices but the enforcement agency has issued another infringement notice that is not paid but is not overdue – the enforcement agency may hold the surplus money until the penalty under the notice is paid and, if the penalty under the unpaid notice is not paid within the period specified, may credit the money that is being held against that infringement notice when it becomes overdue;
(d) if there are no overdue infringement notices and no infringement notices issued but unpaid – the enforcement agency that is holding the money must forward the money to the Fines Recovery Unit to be dealt with under section 112.