Telkom not cancelling debit order

I cancelled my Telkom internet last year December but the debit order continued to come off my account.<br> After various un helpful telecoms and internet interactions with Telkom help line,<br> They said the paper work had been lost between Alberton branch and the cancelation department.<br> So I filled in another cancellation form in June, stating what had happened. Since then I called 081180 number on 26 August an operator by the name of Kwazi said he had sorted it out / the debit order was cancelled and I would be refunded the moneys paid from December 2014. On 5 November I called again and spoke to Tindi. after been put on hold for 20min, she told me the case was closed and I had to resubmit the cancellation form. I did so and was sent yet another case number, however 2 amounts came off my account again last week I sent an email yesterday and again today - but no reply!!! I can revers these (at a cost !!) every month, but Standard Bank cannot stop it.