faulty equipmwnt

I purchased a defy oven and hob mode 600se in 2013 May. I have contacted defy to repair it and 3 visits later the oven is still not working the way it should. I requested that the oven be replaced which they have agreed but now 4days later the stove is not working as well. There is no power supply to either one. I contacted defy on saturday bit the offices were closed. I could not use my stove or oven the entire weekend and I had visitors coming over. I believed in defy and didnt want any other brand. Nirri from Hirsh and Morgan from Defy have been helpful but this is something defy needs to take responsibility for. ****ed off!!!!!