Can my employer fire or punish me if I make a claim for my unpaid wages?

The Fair Labor Standards Act includes an anti-retaliation provision which forbids employers from taking adverse action against employees who attempt to enforce their rights under the FLSA (formally or informally). This means that if an employee files a lawsuit, inquires about, or complains about not receiving unpaid wages, and the employer takes adverse action against the employee, then the employee may be entitled to lost wages and mental anguish damages.