Brand new faulty fridge that won't be replaced

On the 28th Aug 2019, i purchased a Hisense fridge from Makro Woodmead. The fridge didn't cool adequately for about 2 weeks, at which point i let the store know. They sent out a technician and we also discovered that the freezer door doesn't close properly. A lot of work, including filling up of gas and repairs that cause my whole house to be filled with smoke were done, which solved the cooling issue. I subsequently let the store know that i want a new fridge because the freezer door still doesn't close and i'm not comfortable keeping the fridge after so much work needed to be done on a brand new fridge. I have requested a replacement unit but i have since been ignored.