I am under contract with a company that has stopped paying me for last 6+ mths & continued to push me to work without pay claiming failure to reach milestones. During the 6mths I made numerous attempts to resolve this with them. Most importantly I proved that failure to reach milestones was due to their own interference, lack of transparency & constantly changing expectations, which they agreed to. Having call it a truce they promised to pay me the money that is owed & that there will be no interference any more. This was 6+ wks ago. Still no money! Upon advice, I stopped all communication with them & stopped work. They have tried to reach out 2-3 times. I have ignored their attempts. I have also NOT written to them advising them it is due to their failure to lack of payment. Should I?