S.C. Code Ann. § 61-6-1637: Substituting brands of alcoholic liquor.

A person licensed pursuant to this article, including his agent, may not substitute another brand of alcoholic liquor in place of the brand specified by a customer unless the licensee or his agent has: (1) advised the customer that the desired brand is not available, and (2) received the customer's approval of substitution. A person who violates this section is guilty of a misdemeanor and, upon conviction, must be fined not more than one hundred dollars or imprisoned not more than ten days, or both.