Supersonic over charging accounts

Hello, I am using supersonic wifi for my home, my monthly installment is R399 now end of July 2021 they debuted R798 from my bank and I don't even have areas. When I call them they make hold to go through which takes about 20minutes and then hold to speak to a consultant for another 20minutes during this time I never spoke to anyone I am being transferred from one machine to another. After telling me that I am caller number one, the line goes silent just like that. I am inconvenienced as I live from hand to mouth. I need that extra money they took from me. Very bad service i received from supersonic they don't have an email where we can lodge our complaints n they don't even call back.