S.C. Code Ann. § 44-7-200
(C) Upon publication of this notice and until a contested case hearing is requested pursuant to Section 44-7-210:
(2) no person shall communicate, or cause another to communicate, as to the merits of the application with members of the board and persons appointed by the board to hear appeals from department staff decisions.
A person who violates this subsection is subject to the penalties provided in Section 1-23-360.