6.5 The First Advance and Second Advance will be gradually set off against the Product Prices to be advanced and paid by the Customer under the Orders on their due dates.
6.6 The First Advance and Second Advance (except for the amounts which shall have been set off against the payable Product Prices under the Orders from time to time) must immediately be refunded by the Supplier to the Customer if this Agreement is early terminated by any reason or the Term expires without any renewal.