I am a business owner and did work for a company in March and April 2013. They owe me $8700.00 for work performed. I sent them statements, talked to them on the phone etc trying to collect this debt. On September 10, 2013 I sent each owner and officer of the company a Demand Letter by certified mail. I gave them until Oct. 1, 2013 to send me the first installment payment, which I have not received. What is the next step I need to do to collect this debt from them?