Failure to fully repair my car, very poor service

On 27/04/15 my car was damaged in an accident and was repaired by Auto Ross body works on behalf of Budget insurance. I received my car back on the 27/05/15 but it was not fully/correctly repaired as it is pulling to the left and has a cracked front light bracket. After that I informed Budget and till today my car has not been repaired, all they say is that they are going to call me back, I am still waiting for their call. when I ask to speak to a manager, they tell you he/she has left or is not in. what do I have to do to get my car fully repaired? as I pay and still paying my monthly premium, what exactly am I paying for? <br> More than a month since I have my car back, and I have had to chase Budget to repair my car, I have called and had to wait on the phone at my expense. <br> what should I do?