Telkom *****ing from customers

My contract was cancelled in January. I received a call confirming the cancellation. My last payment of R 57.50 was due at the end of January and my account was debited. This morning, 1 March, I noticed that Telkom debited my account for R 150.66. My original contract payment was R 107.50. This is unacceptable. Can you imagine if they've done this to one thousand customers. It is not difficult to cancel a debit order. If this is not resolved in the next eight hours, I am going to take legal action against this company. It's time we took a stand against the pathetic service that we're subjected to. It's disgusting. It leaves a bad taste in my mouth to think that so-called legitimate companies aren't afraid to ***** from hard-working South Africans. Telkom should be ashamed to call themselves a corporate. They operate like *********.