Poor Service Repair Quality

I renewed my contract phone 17 Jul 15. After two months the phone started to switch on and off by itself. After taking out the battery the phone never wanted to switch on again. <br> 1. We booked the phone on 11 Sept (job no ***). Vodacom Repairs Menlyn Pretoria could not repair the phone and send it to the Advance Repair Centre. It was repaired on 18 Sept and Dispatched on 24 Sep. According to Jaco the motherboard (PCB) was replaced.<br> 2. Two days later on the 26 Sep (job no ***) we returned the phone with another problem. This time die camera did not want to focus. Once again Vodacom Repairs Menlyn Pretoria could not repair the phone and send it to the Advance Repair Centre. It was repaired on 1 Oct and Dispatched on 2 Oct. According to the Despatch note electrical parts were replaced.<br> 3. On 2 Oct the phone is still not working - the Recent Key Touch LED light is not working. I WANT A NEW PHONE<br> My daughter is a full time medical student, travel between 128-158 km daily after hours and use her phone for research/study and patient admin. Her overtime needs to be logged and she need to discuss and give feedback by means of notes to her superiors