(2) The designated employer of a member must pay to CSC, in accordance with the Rules, all contributions that under the Rules are payable by the employer of the member in respect of the member.
(3) Where additional death and invalidity cover is applicable to a member under the Rules, the designated employer of the member is liable for any payment that, under the Rules, the employer of the member is required to make to CSC in respect of any premium payable in respect of the member for the purposes of the cover.
(4) Where any amount payable by the designated employer of a member under subsection (2) or (3) remains unpaid after the day on which payment was due, the designated employer is liable to pay to CSC interest on any such amount that remains unpaid at such rate as CSC determines from time to time.
(5) An authority that is required to make a payment under subsection (2), (3) or (4) may apply for that purpose any money under its control.