If there is only one creditor, the proceeds of the sale are remitted to that creditor up to the amount of his claim, in principal, interest and costs, within a period of one month at the latest from the date of the forced sale or, in the case of an amicable sale, from the date on which the price was paid. Within the same period, the balance is remitted to the debtor.
On expiry of this period, the sums due shall bear interest at the legal rate.