Cancellations

Hi i have being trying to cancel 2 contracts for over a week now, went into vodaworld and signed off early cancellation letters with the consultant, Mulalo Motau who then sent the cancellation letters and proof of early cancellation payments and ID back to the wrong email address [Email Removed] 3 days later I checked and both contracts were still active, so I had to resend all the cancellation letters to the correct email address, tried calling *** again to follow up on the cancellations and was told, I have being transferred to a new system so they are unable to assist unless I call them from the numbers I want cancelled, how do I do this when one of the numbers is for data in a 3g device and the other number is in use by my mother, Just getting the consultant at the 1958 call centre to send the cancellation letters through to vodaworld was a mission in itself as he could not spell the word contractor correctly, so we we not receiving the cancellation letter for me to sign off, and I at my wits end with this process and it seems the best way to cancel a contract with Vodacom is to simply suspend the debit order, then guaranteed someone will contact me