Any manufacturer who is required to collect the equine feed assessment under this article and who has not paid the assessment to the Commissioner within 15 working days following the due date of February 1 shall pay to the Commissioner a late fee of 10 percent of the amount due or $50, whichever is greater, in addition to the amount of assessment owed. The appraisal of this late fee shall not prevent the Commissioner from taking other action, as provided for in this chapter. If any person is delinquent in any payment of the money due, then the amount shall be collected by civil action in the name of the Commonwealth at the direction of the Commissioner, and any person adjudged to be in default shall pay the cost of such action. The Attorney General, at the request of the Commissioner, shall institute action in any appropriate court for the collection of any money due, including interest thereon.