Business ProfileforConcrete Master Upstate, LLC

I had this business come out to do concrete work. They seemed nice and professional when they came out to quote. I set up a day with them to do the project. I went over everything in explicit detail as to what I wanted. First they underbid the job, and I had to pay the subcontracted concrete delivery company personally and I was told they would take it off the total price. Then there was a discrepancy with them pouring concrete around an access lid which was EXPLICITLY explained how it needed to be. When I went out and questioned it, I was told it was now permanently done wrong and there was nothing they could do to resolve it. So they offered me $200 to pay to have it fixed myself by someone else. They started this project late in the afternoon, which was a huge project, and they only brought 2 workers so the concrete was set before they could do most of the finishing work. Then when they said they had completed the job, it was 10pm and it was pitch black when they wanted me to look at everything and ok it. I couldn't see much, so we settled up and they left. Immediately after the concrete was set, I emailed him pictures of all the flaws (blocked in a door, didn't broom finish, missed a section, gravel showing etc.) and asked him to come out and address and assess them. He emailed me back and said he would come out and address. He was a no show. I contacted again and he set up another day to come out. He was a no show again. I contacted him again and asked for a refund for all the damaged concrete. He said no, he would come out and fix it. He set up another date and no showed. I contacted him again and asked for a refund since he couldn't be bothered to show up. He said he would be there in 2 weeks with a check. He was a no show again and now will not respond to any of my messages. They did awful work and will not take accountability or make it right with their customer. I would like a refund for this terrible job since it is not functional and looks terrible.