Fridge is Faulty

I bought a fridge for my pensioner Mother in 2025 June as her birthday gift. Fast forward to 2026, exactly 10 minutes nubs the fridge had a fault. We reported the matter to Hifi Corp and they referred it to Defy. A technician by the name of Nzuzo was sent out and he advised he will order the part and come back to fix the fridge. Around Easter time the same thing happen again Nzuzo came out and he advise the reason the fridge is not cooling or freezing is because it too hot outside and we need to increase the temperature every time. This thing again happened and it was cold. I again lodged a claim with Hifi Corp and they referred the matter to Defy Richard’s Bay. I had to call everyone and follow up with Defy Richard’s Bay it has been 3 weeks. The technician came yesterday and he advised the engine has failed and changed his story to say the fridge is too close to the wall. Where as the fridge is more than 15cm from the wall. Last night it made a knocking sound and back to not cooling. This is so draining as everyday we throw away food thag has been spoilt due to the fridge not doing it work. Time, money and energy has been waisted. Not even once has Defy called to follow up it alway I who need to call them. All this is happening and the fridge is not even a year old. Defy I want to hear from you at this point what do we need to do to get the service that we deserve?