Poor customer service

I bought a deep fryer for my mother on the 21st of february 2018 just before the 20th of march it stopped working. We took it back to the store only to be told that it will be booked for repairs. We left the deep fryer in store and followed up yesterday only to be told that we didnt leave the purchase slip of which when we were calling we were told it was already booked in for repairs. The guy dealing with this so very rude and unfriendly. No customer care or whatsoever. His not even remorseful for the inconvinience that he has caused. We were told they wont be able to fix the deep fryer because we dont have the purchase slip and the purchase slip was left inside the box when we returned the deep fryer. So we basically throw R849.00 down the drain for something that worked for less than a month. Cash crusaders randfontien is the worst. They cant refund and they cant repair.