RCS GAME and my refund

My RCS game account was handed over. I started paying. Payments were paid in full. All payments were made at game stores not once did I make a payment with the external collectors but made payment arrangements with them. Okay so my last payment paid on 25 April 2020 at 14:48 at game tygervalley of R2500. I was then told that I paid too much and that the account was settled and over paid by R1800. Since April despite numerous calls to the game, rcs and vvm contact centres, nobody can assist me. Despite numerous emails sent to game and rcs I have received absolutely no response on the matter. I have been messed around and told to call and contact varies departments to no avail. Have you ever been so furious and angry that you end up being calm? Thats where im at. I dont know what else to do. Its been almost 4months. All I want is my own money back and a paid up letter. Please God help me *** Ethan Manuel