Telkom keeps on charging me for ADSL

After switching over to fibre and initiating a process to cancel my ADSL, Telkom keeps on charging me for ADSL. I have posted and inquiry on their website and I have gone to a branch but it is impossible to get a resolution. If I email 'n support query to Afrihost, I get a response within a day. Why should Telkom be different? I could not find a support email address for them neither. It is as if they have set up their system to make it difficult to reach them. I hope by posting this here, someone from Telkom can get in contact with me and help me resolve this issue. Here is the timeline of events:

* 22/2 Receive SMS from Telkom to instruct ISP to release line * 22/2 Inform Afrihost to release line * 22/2 Afrihost responds that line will be released 28/2 * 8/3 Receive email from Afrihost announcing ADSL Line cancelled * 11/4 Receive invoice from Telkom R435 * 11/4 Send telkom message re this issue. * 29/4 Inquire with Telkom at Somerset Mall branch, They explain Afrihost never released line bu then inquire from Afrihost, they confirm that line was released as per instruction * 14/5 Still no feedback from Telkom