Because Seller’s supply chain involves international shipping, the only returns permitted will be for warranty returns as described in Sections 12 and 13, and returns resulting from shipping errors that are determined to be the fault of Seller. In both circumstances, appropriate documentation detailing the warranty defect (as indicated in Sections 12 and 13) or the shipping error must be provided to the Seller in order for a Return Goods Authorization (“RGA”) number to be issued. No Product may be returned directly to Seller without first obtaining an RGA number. Upon issuance of an RGA number, you will be provided instructions for product return. Freight associated with an authorized return will be paid by Seller. Buyer is required to include a copy of the purchase receipt and invoice inside the original carton showing lot numbers to receive replacement product under warranty or credit due to Seller’s shipping error. All returns will be subject to Seller’s count of product returned by Buyer. An unauthorized return, i.e. one for which an RGA number has not been issued, will be returned to Buyer at Buyer’s expense.