Telkom account not cancelled after 5 Months

I have cancelled my account on 8 April 2018 after my contract with Telkom expired end of March 2018.

I have made multiple calls and raised multiple disputes with confirmation that the cancellation did go through. 5 Months later and I am still receiving a bill for the cancelled account.

My calls to support are all escalated, but nothing comes from it. I am trying to protect my credit score by trying to pay, but I can not even pay through the online portal, it seems the account is not linked anymore. I have no idea how to proceed and I am just getting bounced around by Telkom .

It now also seems that the account numbers changed!