From bad to worse,breaking my car instead of fixin

I had problems with my car and I took it to McCarthy Toyota in Lynwood, I was told they would check the car and give me a call back to tell me what the problem was, I didn't get the call , I had to make other means to get home from work. in the morning I contacted them and was told the car was fixed I could collect it, I went and collected it and went back to work, on my way home from work later the same afternoon the car started again and wouldn't start, this was on Fri, I called them on Saturday morning and was told to bring it back Monday morning, I went the entire weekend without a car. I then took it back Mon morning and was told there was something loose and had to leave it again for them to sort it out i did and was later told it was sorted, went back and fetched it this morning again the power steering wouldn't work and this was in the middle of the road I almost had an accident, had to get people to push me off the road. I have had enough of this run around, words cannot express how frustrated I am and I feel Toyota is taking me for a ride, how many times am I doing the same thing and they still cant get the car sorted.