820 ILCS 120/3

A principal who fails to comply with the provisions of Section 2 concerning timely payment or with any contractual provision concerning timely payment of commissions due upon the termination of the contract with the sales representative, shall be liable in a civil action for exemplary damages in an amount which does not exceed 3 times the amount of the commissions owed to the sales representative. Additionally, such principal shall pay the sales representative's reasonable attorney's fees and court costs.