Billed for services not utilised

My account was in arrears for 2 months and my services were suspended from the 15th of August. I have paid for the arrear amount and requested NuDebt, which are Telkoms debt collectors, to ensure that a cancellation request is communicated to Telkom however they blatantly refused my request. It is such an issue to do anything through Telkom. I then requested Via Twitter for the account to be cancelled on the 17/09/2020. The communication that Telkom had sent to me from the 15th of August was to advise me that my services have been suspended. I then paid up the arrear amounts expecting my account to soon be cancelled. Telkom haven't sent a communication through to me to advise that my services had been reinstated and I was under the impression that the services are still suspended. I did not make use of the land-line or the internet/data on the package from the 15th of August and Telkom has billed me for this. I feel this is very unfair because they firstly didn't contact me to tell me the services had been reinstated and secondly I can't be billed for a service that I have not utilised. This is *********