Refund due to service failure

Bought a Defy fridge at Game in Fourways Mall. After a week Iv realize that the friedge is malfunctioning as it’s over froze. My entire top side of a fridge grove my food. I tried to play around temperature and even drop it down to 0.. It didn’t help cause I end up costing all my fruits, veggies, and everything on top frozen and when it defrost everything can’t eat. I went to a shop yesterday and spoke to the sales guy by fridges and he told me they will send someone to my place and check it out. My disappointment it’s how’s going to take liability for all my food that Iv loss due to a malfunctioning 2 weeks old fridge.? Store manager planning to pass the it to defy but I didn’t buy fridge with defy but with them. I need Game store to take responsibility and pay for my lose. All campaniles have liability cover for selling anything in their stores that will cause lose for a customer if it malfunction.