Yard Works Inc

I hired this company to do a lot of work for me 2 patio’s, a retaining wall, back landing, front walk, irrigation system and the lawn. The hardscaping and irrigation system went ok but when it came to the lawn instead putting loam and seed like I paid for they spread the excess gravel and sand throughout the entire yard and threw seed on top.
Kevin on 2 separate occasions promised me they would come back and clean it up.
After several calls a crew came out with a supervisor and they raked the few leaves that were in the yard and seeded on top of the gravel again. Now they will not return my calls. I should have never given them the last payment but being it was November and they weren’t able finish until spring and also being assured that they would fix the issues I did