Complaint against ZAservice Samsung

Hi, My complaint is against Samsung South Africa Complaints department. I took out a contract January 2015 with Vodacom East Gate. During 2015 my phone broke 3 times. The Microphone. In total my phone was in for repairs 8 weeks plus. I lodged a complaint with Samsung where they responded and provided me with ***. The person advised me that looking at my records at Vodacom Advanced repair centre they will give me a new phone. I should hand it in at Constantia but with my working hours it is impossible. So they said the only branch that collects is Samsung Rivonia. Rivonia branch collected my phone and I gave my complaint and ref number to them to follow up with the Complaints department. Now they want to fix the phone again, 4th time just for it to break again, after they said a New Phone will be provided. I sent 3 mails requesting feedback but I am being ignored. The delivery and Read reply comes back on my mail. Mail address - [Email Removed]