S.C. Code Ann. § 37-3-109
(1) "Loan finance charge" means the sum of -
(2) If a lender makes a loan to a debtor by purchasing or satisfying obligations of the debtor pursuant to a lender credit card or similar arrangement, and the purchase or satisfaction is made at less than the face amount of the obligation, the discount is not part of the loan finance charge.
PART 2. MAXIMUM CHARGES