Guarantee does not cover entire unit, how?

Last year I purchased a Hisense refrigerator spot cash from Makro in Montague Gardens, being told that Hisense fridges carry a 3 year guarantee, I felt more secure. One year later, the plastic handle on the fridge broke off, I called Makro and spoke to Sabrina who advised that she would log the call and someone would come out. I sent all the information she needed (seriel number etc) and she called me the following week to tell me that although the fridge is guaranteed for 3 years, the handles only carry a 6 month guarantee. I asked her to tell me where their proof was that I was made aware of this because I wasn't, it's been 2 weeks today, and I still have not gotten a reply. I am going to find out from the consumer commission if this is right because it doesn't seem right. If I was told there is a 3 year guarantee, why was I not told that it didn't cover the handles?