Bad service from Defy Technician

Defy technicians make promises they do not keep. I'm so tired of waiting for repairs to be done. This is what happened: I've been promised by HomeChoice that the double door Defy fridge I bought through them will be fixed by today Friday, 22 December 2017. It is now 7pm and the technician still did not arrive. The Defy technician promised he would be here today between 3pm and 5pm. The consultant at HomeChoice also promised me when I spoke to her on Tuesday that she will contact me today to make sure that the technician came out to repair the fault. Needless to say I'm still waiting for that phone call as well. I logged the fault in the freezer section more than a month ago. I cannot shop for meat for Christmas because I have nowhere to store it. I want HomeChoice to fetch this fridge and give me a full refund do that I could purchase one from a different company. And it would not be a Defy product because obviously their technicians make promises they do not keep. I had a previous such encounter with HomeChoice with the same fridge within one month of buying this product from them. I also waited more than a month for repairs to the water dispenser. This is really atrocious service.