Poor service, poor quality

My mother bought a Samsung fridge a little over a year ago. The issue now is that the fridge is no longer working. Technicians have been sent to the house on many occasions but still there is no happy ending. The fridge has since been fixed more times than I can think of. The technicians have since advised that the unit needs to be exchanged but since then Samsung has given us a run around. We have been getting calls from Samsung and TM Co.sultanta regarding the matter but there's been no breakthrough. In most instances we have dealt with rude consultants giving us contradicting stories that insinuate us lying about the matter meaning we are not going to come to a peaceful resolution. This fridge did not come cheap, it was not free, and the money used to buy it did not fall from trees. I ask that Samsung does right by us and gives us our money's worth.