3 weeks and still waiting

During the first week of July 2015 my Defy fridge/freezer stopped cooling. I called Defy as the fridge is just over a year old and I have an extended warranty with them. On the Monday I called, Wednesday the technician came and brought the wrong parts! They know exactly my model of fridge, needless to say all my food went off and my fridge was only working by the Friday. The fridge is now making such a noise that it sounds like a freight train in my apartment, the fridge is one of those low noise eco friendly ones. I have been calling again since Monday, the technician arrives now, two days later, and promptly leaves without telling me (he was waiting for less than 5 minutes as I was on my way from work less than 2 km away!). So my fridge is not fixed, the technicians drive in old unmarked vehicles, the service department does not what is going on. I paid for the extended warranty but am receiving very lackluster service. Please just credit me with the cash I paid so that I can get myself a new decent fridge.