Does Telkom stil exist?

I have been with Telkom with the past 3 years for data subscription. Prior to that it was usage of the good ol fashion landline. I received the free Telkom device in 2018 in 2019 September, device stopped working. I tried to log an call till this day NOTHING has been done. When I tried to log another call, the message informed me a fault was already logged for this number in 2019, this was in 2020 WAY BEFORE lockdown was even a word. Problem one.. I have upgraded my data package with Telkom and I have a debit order in place for this. My account was not credited, for July, I received an inflated bill for August, again account not credited, Debit order still valid. I have send two strong worded emails to whomever is suppose to respond to emails. Till date, NOT a single communication from them. They are really making a fool out of themselves by calling themselves a communication giant. They cant even reply to an email. In addition, as I want to keep my status as a good customer, I tried to pay this inflated BILL using their online system. It was NOT working. Can someone please explain to me how you can offer a service, that DOES NOT exist... I guess I must count myself, lucky at least I have NOT paid for BAD service... I am unable to PAY for any service. My question as a customer with a 2 year contract what is my options? Can I try to cancel the subscription?