dissapointed

I had a conract with vodacom which was expiring on the30 Jan 2015 and as I called for cancellation a consultant told me my contract expires on Jan 2017 as there was an upgrade I told them that I know nothing about the upgrade then thry said they will call me of which I'm still waiting for their csll. I then went to the branch in hartebee****rtdamon the 30 Jan 15 and they said I must make an affidavit which I did. Yesterday I went to check and cancel the contract and a nice lady call led Silvya called customer care for cancellation and they said it must be done by ***** department and she calledthe no that was given to her but the phone just rrang. I need this to be cancel ke di and I'm very dissapointed that vodacons customer service is poor worst part head office level...