Hisense fridge and customer service pathetic

On 10 September 2024 for an amount of R10999 we bought a fridge freezer online from Makro. We did not have it for a week when it started making noises. We reported this and a technician was sent. After the technician tightened some bolts, he left. Not a week after that it still kept on making the same noises. According to Hisenses own advice and according to Law if it is less than six months old it must be replaced not repaired. We did not buy this second hand. A second and third team of technicians were sent. As Murphy would have it the moment they come here there is no noise, so we started sending voice notes of the noise to the technicians. We are not getting any joy, because they keep on reporting nothing is wrong, although we keep on sending proof of the noise to them. Today we were told, seeing that the technicians keep on reporting there is no fault, they are not willing to give us a new fridge, nor are they willing to give back out money. In essence it is them, even after us sending proof, giving the impression that we are lying and nothing is wrong. They cannot do anything unless technicians find anything wrong. They are welcome to come and stay here for 24 hours to hear the noise as it is on and off. The noise is not consistent and what more can we do than sent recordings of it. We are not attention seekers or looking for our money back, just give us another fridge. They will now wait for our 6 month warranty to expire and then tell us, they cannot do anything. Please note we will now go to the Consumer Counsel and further social media. Their after sales service is non existent and how many more times must we give proof that something is wrong