INIS shall notify Progenics of each increase in any Supply Price it intends to take under Section 7.2(a), which notice shall be accompanied by reasonable supporting documentation supporting such increase as appropriate. In the event that Progenics disputes the amount of any increase in the Supply Price of any Product in accordance with the foregoing and such Supply Price is subsequently adjusted upon resolution of such dispute, then Progenics shall be entitled to a credit or a refund, at its option, equal to the difference between the amount, if any, paid by Progenics for any such Product delivered prior to such resolution and invoiced at the higher Supply Price, and the amount that should have been invoiced to Progenics for such Product based on the adjusted Supply Price.