S.C. Code Ann. § 12-21-110: Refunds when goods have been damaged.

The department may promulgate rules and regulations providing for the refund to dealers of the cost of stamps affixed to goods which by reason of damage become unfit for sale and are destroyed by the dealer or returned to the manufacturer or, in the case of the soft drink tax, in the event of any other legitimate loss that may occur upon proof of such loss to manufacturers.