Steve's Landscape and Irrigation

Two weeks ago we hired Steve's Landscape and Irrigation to make a large flowerbed. We asked that the grass be removed, add in compost and place edging around the bed. That afternoon we started to plant our shrubs and noticed the grass had only been tilled and that the grass and roots were still there. In some places the compost was merely covering sod that hadn't been tilled. When I asked Steve why they didn't remove the roots, he said that he usually sprayed the grass with Roundup, but that I wanted to plant by the end of November. I told him that I wouldn't ever let him spray my property with chemicals because I'm an organic gardener. He replied that it was actually good for the soil once the grass decomposed. In fairness, he did offer to come back and pull out "some" areas of where the grass was coming up, but that if I wanted him to dig all of it out in the bed that would be another bid. He said he didn't bid digging out the grass because it would have been too expensive. He should have qualified what we meant by grass removal. The men were very nice that did the job, but they were probably going on Steve's instruction. We've had other flowerbeds made in the past. They dug the grass out. The grass resprouted and today I spent four hours digging out grass and roots. When I complained again and asked for a partial refund I was ignored. My husband then texted him and received a reply about how we should have let him spray it. He never mentioned spraying (which we wouldn't have done) until I complained.