Credit - An account Credit applied in favor of Buyer. Seller will first apply the Credit against Buyer’s past due invoice(s), if any, and against current invoices as directed by Buyer. Thereafter, said Credit will be available for purchases of Seller’s Products and services. Any of Seller’s Product(s) or services purchased with Credits shall be for the exclusive use of Buyer. Credits can be applied only to Products sold by Seller, shall have no cash value, and shall be valid for two (2) years after date of issuance, after which they shall expire.