S.C. Code Ann. § 61-4-945

A manufacturer, brewer, importer, or retailer may offer or sponsor coupons and rebates to a consumer for the purchase of beer. Coupons and rebates include, but are not limited to, retailer instant redeemable coupons, mail-in rebates, and coupons and rebates offered or redeemed through any electronic means. Manufacturer, brewer, and importer coupons and rebates must be made available upon request to a licensed retailer. A wholesaler is prohibited from participating in the procurement, redemption, or other costs associated for any coupon or rebate for beer offered or sponsored by a manufacturer, brewer, importer, or retailer. A beer manufacturer or wholesaler is prohibited from offering or participating in the procurement, redemption, or other costs associated with paper instant redeemable coupons and scanback coupons for beer in this State.