If no order has been made in terms of section 39(2), the judgment debtor may within 10 days after the court has granted judgment for the payment of a sum of money, make a written offer to the judgment creditor to pay the judgment debt and costs in specified instalments or otherwise, and if such an offer is accepted by the judgment creditor, the clerk of the court shall, at the written request of the judgment creditor, accompanied by the offer, order the judgment debtor to pay the judgment debt and costs in accordance with his offer, and such an order shall be deemed to be an order of the court in terms of section 39.