Telkom Cancellations

I sent a contract cancellation form to ********** on 08 February 2018 for a contract which expired on 02 March 2018. I have not received acknowledgement of receipt or reference number. When trying to follow up on the matter, call center agents on 081 180 could not assure me that the contract would be cancelled as they were not in the "Cancellations Department". They could not take me through to the Cancellations Department because the people there do not speak to customers. This has led me to even doubting the existence of the Cancellations Department. Since the contract has expired why is Telkom not terminating the services on my phone? Instead I keep receiving calls to upgrade the contract.