Review Disappointed in a microwave complaint.

I bought a microwave in august last year at your branch in durbanville. I work in durbanville and got to love their speacials. The time i bought the microwave i loved it when i saw it at the end of my purchase i asked the cashier what is ur guarantee on the microwave she said 1yr and if any issues i must keep my slip and the box i dnt need. I called into the branch explained my complaint and i was told they going to call me back in 10mins. A 10 mins later i was was told that the regional says i need the box and they cant help. I was upset as i have neighbours and friends working at checkers and they said my slip is good enough and its a quality issue in the guarantee year. Its a ottimo microwave and dnt expect this microwave to rust inside and on top. Im not happy with the service i recieved telephonically.