S.C. Code Ann. § 61-6-1500
(A) No retail dealer may:
(4) sell, barter, exchange, give, transfer, or deliver, offer for sale, barter, or exchange or permit the sale, barter, exchange, gift, transfer, or delivery of alcoholic liquors:
(6) sell alcoholic liquors on credit; however, this item does not prohibit payment by electronic transfer of funds if:
(7) redeem proof-of-purchase certificates for any promotional item.
However, during restricted hours retail dealers are 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)
(1) The provisions of subsection (A) relating to quantities of less than two hundred milliliters do not apply to: