Terrible service

My car was at Proline for hail damage repair as instructed by Miway, in Dec 2015. Upon receiving my car I noticed the radio wasn't working properly. It seems that the antenna was not properly attached when the car was reassembled. Then one day my car wouldn't start. I assumed the battery was flat but was surprised as I had had no warning. When the roadside assist came out he showed me what the problem was: the electrodes were not attached, they were just flapping around loose. How dangerous! I am so scared to drive my car now as I am not sure what other shortcuts were taken and what was not checked. I phoned and asked for a manager and was put through to Aadiel. He did not offer any apology just told me to come in. I work very far from Wynberg and can't take more time off work so I asked that they send somebody out to help me seeing as it was their oversight. He said he would phone me back. Needless to say I've heard nothing. I will be emailing Miway to let them know what has happened because I find this totally unacceptable