Pathetic service- Defy freezer

Not even sure where to begin. Anyway here goes... I bought a brand new defy chest freezer from Makro (montagu gardens) on the 03/01/2019. Since day 1 the freezer has been leaking. Called them to enquire about what should be done? A technician comes out... gives me attitude about being at my house with no answer to a knock or the door bell all this while I was at home not hearing the knock nor the door bell. I then call him to enquire about coming out again only to get more attitude. Eventually a day or 2 later he calls me after 18h00 (yes after hours while I'm trying to prepare supper) to say he is on his way to sort the matter. His busy turning down the gas as per his words. Tells me it should be sorted but if there are any leaks call again. Guess what??? More leaks and the water is just running....I call again the Wednesday he says he can only come the Friday. I say ok that's fine. He doesn't show nor call.... my problem is why do I have to go through all this run around for someone to come and fix a brand new freezer which I paid cash for. I DO NOT WANT A TAMPERED FREEZER. I WANT MY FREEZER REPLACED AS BRAND NEW AS THAT IS HOW I PURCHASED IT. IT IS NOT MY FAULT THAT THE FREEZER HAS FACTORY ISSUES. I BOUGHT SOMETHING NEW AND I EXPECT IT TO BE NEW. DO NOT GIVE ME BULL**** ABOUT NEEDING TO FIX IT. WHEN I WENT IN STORE THEY WERE SO QUICK TO MAKE A SALE. I DO EXPECT A REPONSE REGARDING MY FREEZER BEING REPLACED WITH A BRAND NEW ONE WHICH IS IN PERFECT WORKING CONDITION. I DO NOT WANT TO SIT WITH A FREEZER I BOUGHT A MONTH AGO THAT HAS BEEN THROUGH A TECHNICIAN TO FIX. I PURCHASED IT NEW AND I EXPECT IT TO BE REPLACED OR REFUNDED!!!!!!!!!!!!!!!!!!!!!!!