Fed up with Game

I purchased a fridge from Game on 28/11/14 on the 2nd December 14 I logged a complaint with Theo who referred me to the manager, Andre that my fridge was not getting cold. After constant calls to Game they eventually replaced the fridge on 10/12/14. I went on holiday that weekend but when I returned on the 9/01/15, my new fridge was not working and my meat amounting to over R1000 had gone off in my freezer. I laid a complaint with Game on the 9/01/15 again and when I spoke to Andre he denied ever speaking to me about the previous fridge. Game do not believe in returning calls unless you threaten to close your account, so this is what I did. A technician came in to gas the fridge but after this the fridge sounded like a tractor 2 weeks later after constant complaining again another technician came on 28/01/15 to sort out the fridge but I'm back to the same problem. The fridge is not getting cold and my freezer is not freezing. I am now fed up and Game must either replace this fridge or refund me my money. It doesn't take a genius to figure out that there is a faulty batch in these fridges.