CANCELLED ACCOUNT but cant get rid of them!

Visited Telkom Store in Menlyn 19 Nov and filled in form to cancel all Telkom accounts: Telkom Internet, landline, uncapped ADSL and anything else I may not be aware off. Luckily took picture of this form, as evidence, as I was expecting this.... (such a pitty that service is Telkom's greatest downfall - I took up a fibre line from Afrihost instead - mind you, running on Telkom infrastructure, and from application to installation was 1 week only with constant feedback and updates. Service was astounding!!) Had to give Telkom 30 days notice. So by 19 Dec everything should have been off. Went to another Telkom shop in Menlyn 10 Jan and was told that they can only see that the mobile side of my account was stopped. I had a Telkom mobile number? Anyhow, so imagine my surprise at getting an overdue and due for Jan bill via e-mail. Have been holding on for 20 minutes at the Call centre as Im writing this, but the IVR does not even counter for billing, cancellation issues. Web site has reams of FAQ's but no option to get hold of them!!! How do I stop my account and have them reconfigure the outstanding balance? Pls contact me on **********