wrongful billing

my Iphone which isnot even a year old switched off on the 31 December 2015 at 12h00 midnight. i took it to MTN i Nelspruit Pinnacle for them to check what was wrong and was told that they need to take the phone and send it somewhere, and after i was asked to sign documents. now its been almost 3 months and i decided to go and ask why was this taking so long, and only to be told i rejected the quote, what quote t my suprise as i dont remember receiving any correspondednce from MTN, and after i was told to pay R330 for MTN repair center to dispatch my phone to Nelspruit, what an utter ******* and incompetence..what about my own onconvenience, i swear MTN is a subsidiary of Governement the way they operate. i paid the R330 that i dont even know what it is for as the consultant also could not tell me why. now im very annoyed and somehow blaming myself on why i have stuck with MTN for so long, more thatn 20 year service with one number. how could people that i have been loyal to them for so long treat me like this. i want my R330 back and my phone fixed, PLEASE, what happenned to the 1 year warranty of the handset anyway. some one must please call me and fix this dam mess. very upset nx