Omar

I had someone working for me for 4 years been paid cash. After He quit the job, He went to Labor dept and accused me of not paying him for 5 months. Worse yet, because of his unhappiness at the time, He convinced 3 more older employee to make similar accusations. Now years later I am receiving letters from NYCLabor Dept about these people who I trusted, helped and paid in cash, as they desired. Now how can I prove I paid them and how can they prove I own them? Business is already close for years, I have told the Labor Dept I don't own them money 4 years ago.