Bad, bad, BAD After sales service

My son bought a fridge which became faulty after 2 months. Makro send the agents' technicians out to see if they can repair the fridge. The technicians recommend a replacement fridge, which NEVER happened. Now, 3 months down the line, the same fridge is not working... AGAIN!! Called Makro, they send out the same technicians. When the technicians arrived at my sons' house, they were astonished to find out the fridge was not replaced. Telephone calls back & forth between ourselves and Makro is now going on for the 5th day! At the end of the day, who will be liable for money down the drain because for wasted food because of a brand new fridge not working properly. NOT MAKRO!