S.C. Code Ann. § 37-2-501

"Home solicitation sale" means a consumer credit sale of goods or services in which the seller or a person acting for him personally solicits the sale, and the buyer's agreement or offer to purchase is given to the seller or a person acting for him, at a residence. It does not include a sale made pursuant to a pre-existing revolving charge account with the seller or pursuant to prior negotiations between the parties at a business establishment at a fixed location where goods or services are offered or exhibited for sale, a transaction conducted and consummated entirely by mail or telephone, or a sale which is subject to the provisions of the Federal Truth in Lending Act on the consumer's right to rescind certain transactions. A sale that would be a home solicitation sale if credit were extended by the seller is nonetheless so because the goods or services are paid for in whole or in part by use of a credit card or by a consumer loan with respect to which the lender is subject to claims and defenses arising from the sale (Section 37-3-410), and the buyer has the same rights against the card issuer or lender that he has against the seller under this part.