No action after cancelling of Telkom services on 14/09/2020

After experiencing non-existent customer services from Telkom, I switched to another ISP and cancelled my services with Telkom on 14 September 2020. The cancellation has still not gone through and I have not heard anything from Telkom yet. I was billed at the end of September and again at the end of October. I need to hear from Telkom ASAP as I cannot continue paying for a service that I’m no longer using and cancelled almost two months ago.