MAKRO and DEFY Service Pathetic

We bought one of those DEFY touch tops stoves in October 2020 from MAKRO and in December on the 21st the oven stopped working, didn't switch on at all and I called MAKRO to report the issue and they told me they would log a call with DEFY. Call was logged and DEFY technician came through on the 24th to check the stove and he told us some switch in the stove had to be replaced and that he was gonna go back and order the part and then come back to install it which he never did. I called again on the 2nd Feb 2021 after receiving NO FEEDBACK and the guy who assisted me told me that the call I had logged in December was closed as complete on their side - meaning the technician reported that the matter was solve whilst it wasn't. This gentlemen the logged another call with a different job number and then again another technician came through on the 4th Feb 2021 and after checking he said the same thing that the switch had to be replaced and he was gonna go order it and come back to install. It's the 16th today and I have been calling the whole of last week and being told the part ordered had not arrived. I'm so frustrated because the stove hasn't been working since and it means we basically bought a stock that is broken and have to cook on 2 plate for all this time. I mean we bought this at a reputable store - MAKRO but they were also not helpful in terms of making sure the issue is sorted out for us. We've tried switching on the stove and the main switch trips each time we do. So we are stuck with a stove that we can't use. I'm so angry and disappointed by DEFY - their service is pathetic. MAKRO as well - they don't do follow ups which is so disappointing. They're just selling faulty items in their stores and don't care about us the customers.