Vodacom are *******

I am very unhappy about Vodacom ******ion towards their customers. They have been billing me for over a year for the router contract that I never got. I only took a data contract and only late January when I spoke to their consultant who were honest to tell me that I have been billed for something I was not given and she promised to send an email for compensation and only yesterday I found out that they upgraded my contract without my knowledge, Vodacom is a big ***** and I need this to be canceled with immediate effect coz I never took any upgrade with vodacom instead I want to cancel all my contracts after expiry, which is only for the Data contract coz they have ****** my money from me for a long time