Paying for suspended services

In April 2018 I changed over from ADSL to fibre through telkom. Once everything was installed and my fibre was running (which was another headache) Telkom billed me with R6000 on my account as device charges. I tried to dispute this many times since then unfortunately each month the dispute is resolved without me being contacted but the amount still stays on my account. In October I logged another complaint which the reference number is ********** 4 We are always told to wait 7 to 14 working days. I waiting a month then called telkom every single day in November. Everyday an agent would tell me that they have escalated my dispute and I got promises from supervisors and managers that would call me back the next day but no one does. My account also gets suspended all the time and I continue paying for services that I'm not receiving. It is now February 4 MONTHS after I logged the dispute. I am told that it is still under investigation and I need to wait for someone to contact me. For how long? Another month? Another 4 MONTHS? Maybe 4 years then my account will be sitting at R1m and I would have been charged for services I am not getting. I don't even know how to escalate this further because agents refuse to give any details out.