Incompetence to cancel debit order

I phone in on the 07th of October to cancel the monthly recurring data as my computer crashed and I no longer need the data. And with that the debit order. I was send a form to complete which I did immediately. On the 25th of October money was deducted from my bank account. I phoned in and was told that the request was only logged on the 29th of October. I complained about the incompetence and that I want a refund as I request on the 7th of October to cancel everything. The lady said she will make a note on the system. On the 25th of November they deducted money from my bank account again. I phoned in and was told that I had to stop the debit order at my bank.I am so upset. Why didn't someone phone me or send me an e-mail giving the status of the matter. This isn't my first bad experience with Telkom. I wanted to get a phone and laptop contracts from Telkom. I stand in a queue for four hours to apply. I was approved. I waited 2 weeks and cancelled the deal. A client forgot his money and the guy behind the counter said he now the costomer. I gave the money to him untill the customer claims it. What did he do with it he send someone to buy him some biltong and cold drink.