Faulty fridge and month of pursuing Makro to refund the money

I bought a hisense fridge online in March 2022. The fridge had a leakage on the dispenser and the refrigerator top was freezing whenever fruits and veges touch it. I gave it time think it was gonna go away. The 29 April 2022 i decided to request a return online and was asked to provide further details on the fridge when i provided the same day. A week passed by and I wrote a follow-up on the 9th May, i was told the matter is escalated to the manufacturer to book the iteam. On the 18 May i decided to wrote to Hisense the manufacturer. They reverted back to me by the 20 May and arranged to assess the fridge on the 23 May which they did. They advised that i should wait two day to hear from the Makro store. I waited. I called to follow up on the 26 May 2022. I was told nothing has been done on my request and it will be forwarded for the approval of my return request. And that it was not necessary for me wait for technician since its a refund. Their plan was to string me along i don't know for how long, while they have sold me a fridge with a thermostat that doesn't work.