Cellphone Service is HORRIBLE

Bought a cellphone in 2014,a couple months down the line the navigation button stopped Working. Took the phone in dec 2014. In Feb 2015 went back to the store to enquire what the progress was. No feedback could be given. A couple days later I received call from Lebogang who said that MTN are short staffed and that they are waiting to get the parts to repair. Fast forward months later I receive and sms saying that i need to pay R330 to MTN as quotation was rejected(no explaination as to what is wrong). Went to Ackermans the same day I received the sms to enquire. NO ONE knew what i was talking about and was told that they'd call the following day. To this day there has not been a response from Ackermans but from MTN saying I need to pay. Nothing was ever mentioned by Ackermans. Why should I pay still for a phone that does not function amd for MTN to check its product?<br> <br> <br> <br> Unhappy Client