S.C. Code § 46-31-100
If a referendum is carried in the affirmative and the assessment is levied and collected as provided in this chapter, under the regulations promulgated by the board of directors of Tobacco Associates, Incorporated, any farmer or tobacco producer upon whom and against whom the annual assessment has been levied and collected under the provisions of this chapter, if dissatisfied with the assessment and the results may demand of and receive from the treasurer of Tobacco Associates, Incorporated, a refund of the annual assessment collected from him, if the demand for refund is made in writing within thirty days from the last date on which the assessment is collected from the farmer or producer or deducted from the proceeds of the sale of tobacco of the farmer or producer.
S.C. Code § 46-31-100