I worked as a sub to a sub on a CMHA job. That sub got fired from the job and now they won't pay me for work completed. 4 outstanding invoices. The sub got fired on 9/12/13. I have invoices for work completed on CMHA job and other projects as well and the sub has stated that they are flat out not going to pay me for work completed because they got fired. Sub got paid from the Prime but won't pay me. I have written sub contractor agreement with the sub. Sub has one with the Prime. What can I do to get paid. I sent sub invoices and they don't return emails or phone calls.