I have been waiting for defy to come exchange a fridge I bought from Makro both Makro and defy useless

I have been waiting for defy to come exchange a fridge I bought from Makro both Makro and defy useless. A technician came and assessed the fridge found that they sold me a burnt fridge.now no communication nothing they taking me from pillar to post. Can I have my money back or a new fridge. It’s been a month of me getting this horrible service. The fact that they sold me a burnt unit it’s disgusting.