Contract suspended without casue and refusal to re

My contract was locked in error by Vodacom on Sunday 8 November 2015. I have made every attempt since Monday 9 November 2015 to rectify the situation. It is now 12 November 2015 and my phone still does not work. I cannot make or receive calls. I have escalated the matter to management with no success. I have made in excess of 25 calls to Vodacom. They then tell me that they have tried to contact me but have had no success. It is no wonder because MY PHONE DOES NOT MAKE OR RECEIVE CALLS DUE TO VODACOM's gross negligence. I do not know where else to turn to rectify the problem. They have logged service requests and then closed the requests on the basis that according to them the problem is resolved. To get my off the line when I phone them they either tell me that there is nothing wrong or I must remove my sim and insert it again and reboot my phone. Guess what Vodacom: IT DOESN'T WORK! At the end of the month they will deduct my monthly subscription yet I have received no service and cannot use my phone at all. It is a disgrace!