Any payment under this Article 7 that is more than [**] past due will be subject to interest at an annual percentage rate of [**] plus [**] if a Party does not make payment within [**] of its receipt of notice that such amount is past due.  Likewise, any overpayment that is not refunded within [**] after the date such overpayment was made will thereafter be subject to interest at an annual percentage rate of [**] plus [**]; provided, however, that if the overpayment is due to errors in reports provided by the overpaid Party, such interest will accrue from the date the overpayment was made.  Notwithstanding the preceding, if a Party contests any amounts due hereunder in good faith and promptly notifies the other Party of such dispute, interest will not accrue as to amounts being so contested until [**] following the presentation of such notice to the other Party.