S.C. Code Ann. § 41-31-130

Nothing in Sections 41-31-110 and 41-31-120 shall be construed to authorize or require the refund of any sums lawfully paid into the unemployment compensation trust fund or to authorize or require sums lawfully paid into the unemployment compensation trust fund for any purpose other than to pay unemployment compensation benefits. But the department may make the necessary adjustments in conformity with the provisions of this law by deductions of future contribution payments as though such payments or assessments had been made erroneously by any person coming within the provisions of said sections.