Defy no service

I requested new hinges for my Defy oven. Over a month later after many phone calls and speaking to Vanessa a supervisor the hinges arrived. The techncian Godfrey phoned to make an appointment to fit them. He never came and promised to call the following day. He has never been despite many messages and calls. I then get a message from Defy saying the job has been completed. I tried to speak to the manager for Johannesburg Edward Kloof to no avail. Shocking service and now I have to go to another company for such a small job. In addition Defy spare parts are impossible to get. I cannot get new knobs for the oven and other repair companies tell me for 6 months it has been difficult to get parts and Defy is not importing. Poor show Defy!!!