Cancellation is a nightmare!!!!!

Besides not having the device I am currently paying for Telkom feel the need to take the **** when I need to cancel this contract ( which is done already) I called the contact center and was told to go in store. I get to store I am given a form and told to email it myself. I send the email and a week later nothing. I call the contact center that says I was given the wrong email address ( only to also be given the wrong email address by this agent as well as the email failed and this email was invalid) Ive been with Telkom for a few years and was always happy but its disgusting at how hard it is to end contract; but they were so quik to sign me up and start taking my money. I still cannot get this cancelled?