I have ultimately been working for a subcontractor for the past month, and after I was done with my part of the project he said he would send me a check "overnight". However, it has already been over a week and I have not received anything. During the past week, all my attempts at calling him got me the answering machine. This subcontractor is somebody I worked with before, however, I am afraid for the worst. I also really need the money by the end of the month, which is a little more than one thousand. How can I get my money?