Defy faulty appliance

We bought this stove in May this year, four months down the line the stove stopped working. We went to complain at the shop where we bought the stove from (Game King William’s town) and the store contacted Defy. Two technicians were sent to come and assess. As they were busy with the stove it bursts. They left and promised to come back the next day and they never came. We are sitting without a stove since those technicians came and no one from defy has contacted us since and it’s been two months already. Yesterday I decided to call the DefyEast London branch and the lady that helped me told me that the technicians report started that the stove is installed incorrectly because the Hub is installed next to the oven hence the burst. I took this picture and sent it to the person to verify that those technicians ****. And she even said she was suppose to cancel the warranty because of that report. I think defy staff come up with all sorts of excuses when they don’t want to replace their products. This is the second stove that we bought in a space of two years, the first stove stopped working and when a technician came he said the stove was damaged by ****roaches that we did not even have we had to buy another one while the first one was still under warranty because defy refused to replace it. I don’t know why I’m loyal to this brand because it keeps disappointing me. I’m still waiting for Defy to get back to me about the way forward. I phoned them, sent them messages and even wrote on their Facebook wall but still no response.