terrible service

I have since march 2015 ATTEMPTED to have my cell phone , on contract repaired. it has since been sent to the relevant persons and come back with that the phone cannot be repaired. my phone at the time taken in was still under warranty. VODACOM GALLERIA, could not assist with when my phone would be ready, SO I decided to drive to the store TODAY.Jaco the assistant then proceeded to a room where he miraculously located my phone. His attitude as an assistant in sales is terrible. you would expect that living in this day and age sales assistants would be more professional than treat people based on a colour of skin. he is extremely uncooperative and abrasive. He was unable to explain, what the report he gave to me meant, or how Vodacom would assist with the issue at hand. He could not understand that my mobile was still under a warranty when booked in and Vodacom surely must assist. I then wanted to cancel my contract as the service could no longer be rendered. he merely gave me a number and asked me to call those people and he could not do it even after me insisting he call from within the store. UNACCEPTABLE! I AM PAYING FOR A SERVICE WHICH IS NOT BEING RENDERED.