Cancellation of account - deceased person

Hi<br> <br> I have on numerous occasions notified Telkom that my father passed away on 1 December 2013. Invoices were paid (despite all efforts to cancel the account) until approx March 2015. I have also sent them a copy of the death certificate, but the bills keep on coming.<br> <br> All I want is for Telkom to clear what they deem outstanding and close all accounts in my late father's name.<br> <br> Account details: DJJ van Velden<br> Account number: ***<br>