Deafening silence

I bought a fridge f om hifi corp almost two weeks ago. After the wait for the gas to settle i placed water in the dispenser only to find it was leaking both inside and outside. I emptied the water and gave it time as i thought maybe i would try again i did and same problem. I called hificorp to report this and they gave me the run around. I then told them i would report them to head office if i had no response. The manager, floor manager or otherwise tells me my complaint has been lodged and sends me an email. I then call again a day later and they tell me they located a new one from one of the other stores and it would be here Tuesday. Its Thursday a week or more later and i have heard nothing, got no feedback, no call, just ignored. I have been a customer with them for years and ever since the change of staff at Pinetown store the service really is not what it used to be. My time is running out for my return due to incompetence and blatant neglect to correspond on behalf of the management at hificorp. Of they cannot replace my fridge i would rather have my money back as it is a very expensive fridge and im quite disgusted with the service they now provide. The manager sent me an email so I have proof that I logged the the complaint but not a sound since even though I have been emailing her.