(1) Any amount (including an amount of contributions) that is payable to CSC under this Act or the Rules may be recovered by CSC in a court of competent jurisdiction as a debt.
(2) Any contribution payable by a person to CSC under the Rules that remains unpaid when the person ceases to be a member may be deducted from any payment or payments of benefit payable under the Rules to, or in respect of, the person.
(3) Where for any reason (including the making of, or cancellation of, an election under the Rules), CSC had paid an amount of benefit that is, or has become, not payable:
(a) the amount so paid may be recovered by CSC in a court of competent jurisdiction as a debt; or
(b) where the person to whom that amount was paid is receiving, or is entitled to receive, a benefit under the Rules, the amount so paid, or such part of that amount as CSC determines, may, if CSC in its discretion so directs, be recovered by deduction from that benefit.