Telkom - Debited my account again - its called *****ing!!!

I cancelled my telkom wifi during December. There was a friendly guy at Rosebank Telkom who cancelled my contract, as it was the end of the 2 year contract. Then Telkom debited my account in December for a full month. I disputed this, and then they added a banking fee charge and re-debited my account. I called and spoke to someone via their website, and they have again this month debited my account twice for an amount that makes no sense at all. Telkom is quick to take your money but slow to sort out the accounts on their side. Not only that to "CANCEL" you have to go into a branch? but they have this whole idea that they are the most helpful and friendliest company - VERY FAR FROM THE TRUTH!!!