Where—
the person so liable or his or her personal representatives shall not be entitled to bring proceedings in respect of a cause of action arising out of the circumstances mentioned in paragraphs (a) and (b) above against the person entitled to payments under the order or her or his personal representatives, but may instead make an application against that person or her or his personal representatives under this section.
On an application under this section the courtto which the application is made may order the respondent to pay to the applicant a sum equal to the amount of the payments made in respect of the period mentioned in subsection (1)(b) above or, if it appears to the court that it would be unjust to make that order, it may either order the respondent to pay to the applicant such lesser sum as it thinks fit or dismiss the application.
An application under this section may be made in proceedings in the High Court or the family court for leave to enforce, or the enforcement of, payment of arrears under the order in question, but when not made in such proceedings shall be made to the family court; and accordingly references in this section to the court are references to the High Court or the family court, as the circumstances require.
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An order under this section for the payment of any sum may provide for the payment of that sum by instalments of such amount as may be specified in the order.
An officer of the family court, and the collecting officer under an attachment of earnings order made to secure payments under a payments order, shall not be liable—
if, but only if, the act was one which he would have been under a duty to do had the payments order not so ceased to have effect and the act was done before notice in writing of the fact that the person so entitled had remarried or formed a civil partnership was given to him by or on behalf of that person, the person liable to make payments under the payments order or the personal representatives of either of those persons.
In this section "collecting officer", in relation to an attachment of earnings order, means the officer of the High Court, or the officer of the family court, to whom a person makes payments in compliance with the order.