S.C. Code Ann. § 37-3-509

With respect to a supervised loan, no lender may use multiple agreements with respect to a single consumer loan transaction with intent to obtain a higher rate of loan finance charge than would otherwise be permitted by the provisions on loan finance charges for supervised loans (Section 37-3-508). The excess amount of loan finance charge resulting from a violation of this section is an excess charge for the purpose of the provisions on rights of parties (Section 37-5-202) and the provisions on civil actions by the administrator (Section 37-6-113).