Refuse to cancel my month to month subsciption

I have a Telkom Mobile month to month data sim card and have requested twice for this to be cancelled.<br> <br> In order to suspend a line, I have to email a form to their cancellations desk and have received two automatic responses stating that someone will be in contact with me. I am still waiting a call back.<br> <br> I have called Telkom Mobile's call center twice and both times they have indicated that I must just email the form and that there is no record of this form on their system as of yet.<br> <br> I have barely used this sim card for 5 months and at R400 per month this is a huge waste of money. When I purchased this package I was ensured it was month to month and I would be able to opt out at any time.<br> <br> PLEASE HELP ME!!!