Upgrade, sheer incompetence

If there was a negative scoring that is what I'd be rating. I've been sent from pillar to post for a simple contract upgrade on an existing line, noone seems to know what is happening. I cant even cancel my contract which is what I want to do at the moment because of all this nonsense. Being transferred to departments where there is noone working or noone picking up the phone, agents refusing to transfer me to their manager its absolutely unacceptable the level of incompetence happening at mtn. I was waiting for a manager and the agent i spoke to simply sent me back to a waiting line because they refuse to transfer me to a manager. If there is noone who can help me just cancel my contract immediately and i will find a provider who is able to provide me with a service