S.C. Code Ann. § 12-21-4210

Bingo cards may not be sold or transferred between licensed organizations, between distributors, or between manufacturers. All unused bingo cards may be returned to the department for refund and destruction. The department is required to refund only the amount retained by the department previously based on the face value of each card and does not include the manufacturer's price or transportation charges to the consignee at destination and such additional charges. If an organization operating a bingo game ceases operation within fifteen days from the purchase of the last voucher and the voucher remains outstanding, the department shall accept the returned paper and credit the value of returned paper against the outstanding voucher. The organization then shall pay the balance of the voucher less the value of returned paper.