Unable to cancel Telkom account.

I am unable to get my telkom order cancelled since last year, or the order was cancelled as per each person I speak to but yet I get a bill to my house.

I ordered adsl online, they said someone should contact me, nobody did so I went back online and cancelled the order. Order was cancelled as per telkom I did via online, and filling in a physical form. I continued getting a telkom bill for ADSL internet, i also tried applying for a new contract but was told I have an outstanding bill. Now I call them again and they say its not cancelled yet. I did the online thing, the account is no longer listed on my telkom dashboard.

Who can assist me in getting this thing cancelled for real please?