Supersonic Double Charging Clients with NO REFUND.

Supersonic have added services on to my account that was never ordered. Call centre agents cannot help me to sort the issue out. I was FORCED to make this additional payment to supersonic for services I did not requested, in order to cancel my account with them. No one can help me resolve the incorrect billing. They keep pushing me from one call agent to the next. Worst part the call agents themselves don’t know what to do. I keep logging cases with them. But to make things worse I keep getting told that the cases are being logged incorrectly by the agents, so every time I call in they tell me I need to log a new case. This keep happening over and over and over and over again. I feel like they doing this on purpose to push me around so that you cannot get your refund. I have spent hours ON HOLD on my cell phone. This is the worst client experience I have ever gone through. All I am asking for is for Supersonic to please reverse the charge of R1270.32 that was incorrectly billed to my account. But I cannot seem to get this from them. They say I am not allowed to speak to someone in the billings or accounts department nor am I allowed to speak to anyone in the PMO team (who added the service to my account). You are only allowed to log a case with the call agent and hope for the best. I JUST NEED HELP TO GET THIS SORTED - why can’t any of your call agents HELP ME! I feel like I am being bul**** by Supersonic.