Poor service delivery.

I contacted Superior shades to install a double shadeport. They came and gave me a quote and i paid the deposit the same day. After a few days they came and put up the poles. Another few days later they had to come to finish the job. This is where the problem started. They phoned me and said they were stuck in traffic and won't make it. So i waited untill the next day. They came and did the job but the net was wrong. They were supposed to add a drop on one side that was not there. They spilled a can of paint on my paving. Now today 2 weeks later they were spposed to bring the net back but they can not make it. They are to busy somewhere else. So i'm going into week three with no shade net and a very big splash of paint on my driveway. I won't recomend them to anyone. My next step now is legal action.