Unable to cancel vodacom contract for a month now.

I have been trying to cancel my Vodacom cellphone contract for the past 30 days to no avail.<br> <br> 16 March 2016 - Called cancellations (***), on hold for 50minutes, eventually gave up.<br> 17 March 2016 - Called cancellations, on hold for 60minutes, then called customer care (082 111) they said hey couldn't help and I need to send an email to [Email Removed] I did. No response to this email<br> 30 March 2016 - Called cancellations, on hold for 30minutes, I gave up<br> 04 April 2016 - Called customer care, told them that I had no response to my email they said the initial email address is incorrect and I should use; [Email Removed] I did, still no response to date.<br> 04 April 2016 - Asked customer care to log a ticket and escalate it. Received a reference number<br> 14 April 2016 - Called customer care to follow up on my ticket. The ticket was not updated, basically not attended to. The agent from customer care tried to conference cancellations into the call but as usual, cancellations is never on the other end of the line<br> I don't even use this sim card anymore.<br> Does Vodacom cancel or is one in their contract for life; whether they like it or not