S.C. Code Ann. § 61-6-1500
(A) A retail dealer may not:
(1) sell, barter, exchange, give, or offer for sale, barter, or exchange, or permit the sale, barter, exchange, or gift, of alcoholic liquors without regard to the size of the container:
(3) sell alcoholic liquors on credit; however, this item does not prohibit payment by electronic transfer of funds if:
(4) redeem proof-of-purchase certificates for any promotional item.
However, during restricted hours a retail dealer is permitted to receive, stock, and inventory merchandise, provide for maintenance and repairs, and other necessary, related functions that do not involve the sale of alcoholic liquors.
(B)
(2) A person who violates the provisions of this section is guilty of a misdemeanor and, upon conviction: