Escalating bill on suspended services

We cancelled our business Netcube Telkom account on 20/06/2019 but to date this account is still pending. Even though our services are currently suspended, we are receiving accounts monthly and this bill is escalating. Spoken to several different consultants and numerous emails and phone calls later nobody is able to confirm this cancellation. Account in question is Acc No: ***. Reference 553312. I am tired of being given the run around and refuse to pay an account for a service that was cancelled a year ago. Secondly Telkom does not give you feedback on anything so it is a total waste of my precious time.