S.C. Code Ann. § 37-2-416
(3) If a creditor attempts to change the terms of a revolving charge account as provided in subsection (1) without complying with this section, any additional cost or charge to the consumer resulting from the change is an excess charge and is subject to the remedies available to the consumer (Section 37-5-202) and to the administrator (Section 37-6-113).
PART 5. HOME SOLICITATION SALES