My car has gone back in after being \fixed\" . I"

I am so disappointed in the service I have received from Audi Centre Menlyn. I had taken my car in on Tuesday to get my engine mountings. I was then told they found an oil leak so they'd like to keep my vehicle overnight to start working on the leak. They told me it would be done by the end of day. I then was told at the end of day that they had not completed it and that it would be done on Thursday. They called me on Thursday to collect my car. I drove home and realised that my oil was on minimum and they had not topped up my oil. I called to inform them that I would be bringing it back for oil top up. I went there at around 14:30. They topped up my oil and then the oil pressure low light came on. They tried working on my car but failed. Now they are telling me that I have to leave my car over the weekend. I was not given any courtesy vehicle and have basically not had a car since Tuesday. I am truly disappointed.