Vodacom Breaks phone.Refuses to replace or contact

I recently subscribed for a Vodacom contract. After 1 month's of using the Sony Xperia M4, the software malfunctioned and I returned the phone to Canal Walk repair centre on the 08 August 2015. <br> <br> When contacted to collect the phone, it was found their tech damaged the screen. Voda refuses to accept responsibility. Today is the 06 Oct 2015, 2 months later I receive no regular correspondence. They continue to bill me. I've spoken to Boitumelo (snr consultant), Yaseen Arendse (Snr consultant) and at least 10 other consultants. Omar (manager at Canal Walk) is ***********, promised to forward me a copy of his motivation for a new phone. He did nothing to assist me but make promises and refuse to call me back.Two months later I'm told \we're looking into your case"as they did 2 months ago. I'm without a functional phone. My professional life is compromised and Vodacom refuses to accept responsibility. I want my contract cancelled as I feel I'm treated with Apartheid-like service. <br> <br> After patiently waiting for 2 months"