Telkom Milking money from my account after contract has been cancelled and affecting my credit score.

This is the 100th time this year i complain on hellopeter and nothing has been done with my cases. I cancelled my contracts multiple times and i was billed on month to month basis and finally in August my contract was cancalled and i was converted to prepaid however on Tuesday i got a debit order of R1005 from Telkom. i dont know how did i accummulate R1005 while my account has been closed. The only amount i owed telkom at cancellation was R270 of which i paid through EFT. Am in a process of getting a home loan and these reversals of debit orders by telkom are affecting my credit score. May you please fix this and i beg you not to end me those annoying automated messages. Seems like the restructuring done at Telkom has not improved anything perhaps wrong people were cut off.

Attend to this ASAP.

Regard