Where credit is made available to a borrower by means of a high cost credit agreement that credit shall not be reduced by the high cost credit provider or a person acting on his behalf by any amount in respect of:
(a) repayment of the credit or any charges related thereto, or
(b) repayment of a previous credit or any charge related thereto,
and no payment in respect of the credit shall be required of the borrower by the high cost credit provider or a person acting on his behalf before the due date of the first repayment instalment.