Miss. Code Ann. § 69-35-29

In the event such referendum is carried in the affirmative and the assessment is levied and collected as provided herein and under the regulations to be promulgated by the state ADA, any bulk tank unit upon and against whom such assessments shall have been levied and collected under the provisions of this act, if a bulk tank unit is dissatisfied with said assessment and the result thereof, such unit shall have the right to demand that the treasurer of the state ADA refund such assessment so collected from such bulk tank unit, provided such demand for refund is made in writing within thirty (30) days from the date on which said assessment is collected or due to be collected, whichever is earlier, from such bulk tank unit under the rules and regulations of the state ADA. Pursuant to the Dairy Promotion Stabilization Act of 1983, 7 U.S.C. Section 4510 et seq., any such funds shall be transferred to the National Dairy Board by the treasurer of the state ADA.