cancellation or upgrade nightmare

<p>In July I called in to cancel one of my vodacom contract. The Lady at the retention convinced me otherwise, then we agreed to rather change my acc to a data contract. I had confirmed with her that this will be effective in August. When I check my sim airtime was loaded instead of the agreed data. I called in over the weekend was advised to call in today as an error has been made. I tried to call 4 times today either to have my calls ended or agent takes me back to the menu options. Please resolve this immediately and cancel my contract. I ********** -8</p>