BAD Service and Incompetence equals VODACOM

My experience with Vodacom has to be the worst I have ever endured with any mobile network. I honestly don't understand if they hire inexperienced people or they are just BAD service providers. After calling numerous times to cancel my contract, to this day I'm still informed that I can't due to a technical error on their system. Mind you I've had to endure a conference call between their call centre retentions department and accounts department. To make matters worse, their agents don't even phone back to provide feedback as per their undertaking. I'm gatvol, and if they think I'm going to sponsor another month of their incompetence, they've got another thing coming.