TELKOM'S CANCELLATION PROCESSES DON'T WORK

As a multi-decade Telkom client, I timeously notified them of the cancellation of a service as the area to which I was moving was not covered by Telkom. Documentation was sent multiple times. Accounts received after cancellation queries. Telkom contacted me about an overdue account and documentation was again resubmitted. This morning I received another invoice. How do you get Telkom to manage their cancellations without this type of unnecessary stress? Bad brand experience.