The Commission is not liable for the payment of interest under this subtitle:

            (1)      If a proper invoice for accrued interest is not submitted within 30 calendar days after the payment date of the amount on which the interest accrued;

            (2)      For more than 1 year following the 31st calendar day after the receipt date;

            (3)      On amounts representing unpaid interest; or

            (4)      If there is a dispute, as determined by the Commission, as to any material factor in the contract or purchase order.