With respect to a consumer credit transaction, if any scheduled payment is more than one and one-half times as large as the average of earlier scheduled payments, the debtor has the right to refinance the amount of that payment at the time it is due without penalty. The terms of the refinancing shall be no less favorable than the terms of the original transaction. The provisions of this section do not apply if the debtor’s payment schedule has been adjusted to conform with the seasonal or irregular income of the debtor, or if a consumer credit transaction is repayable in a single principal payment irrespective of the scheduled interest payments.