Telkom never answers the phones and debiting my account when i have no active service with them?

I have cancelled my Wifi in August and they immediatelt cancelled my wifi and still collected a full month premium from my bank account even although my contract was cancelled (i was on a month to month basis) i gave 30 days notice and still paid a full month. We are now in November and Telkom keeps debiting my account *******ly. Aso there are 3 debit orders being collected. I have had R130 being taken, R15 and R8 being debited????????? Then i cancel the debit orders and Telkom reloads them with a different reference number and collects again and then has the audacity to update my transunion showing that I am 60 days behind on payment???????? Where is this even egal after my contract was cancelled??? please tell my why you are debiting my account if i have no ACTIVE SERVICES WITH TELKOM???