If any employee is paid by an employer less than the applicable wage rate to which the employee is entitled under this subchapter, the employee shall recover, in a civil action, twice the amount of the minimum wage less any amount actually paid by the employer, together with costs and reasonable attorney's fees, and any agreement between an employer and an employee to work for less than the wage rates is no defense to the action. (Amended 2001, No. 47, § 7.)