Cancellation of my LTE Contract

I have been driven to the point of not knowing what to do or who to speak to anymore. Ive been trying to cancel my LTE contract since October. After numerous mails and calls to Telkom asking to follow up on the progress to be told it will be escalated to the manager (which has literally happen 6 times so far) but still nothing has been done and no communication. Each time i speak to a different person telling me the same thing. This is actually a ridiculous state of affairs. Secondly Im still getting debited each month for a product i no longer have use for. My advice dont let Telkom hook you with something like this because as a customer they dont really have your best interest at hand, they only interested in taking you money.