Disappointing service from Game

Game is very unfair to its customers. Once they get money from you they don’t care what happens to you and the product you bought.I bought a home theater system with game in October 2015 then early this year in March it just went quiet..I took it on 10/03/2020 back to the store which I was told it was out of warranty and I agreed to pay any extra charges they were gonna charge to fix.. then on 14/05/2020 I got an sms that my system is ready for collection but I never received any call or SMS about the amount they gonna charge me. I get to game and the system is not fix but then the lady at game connects it to verify that.. then the system just bombs with some sparks at the back..so I never took it because I believe now the repair center made it worse cuz when I was bringing it in there was nothing burning at the back. Now when they call me they say I must take it to the black market to get it fixed which is unfair to us as customers. I have been a loyal customer to game for the past 10 years where I even once had a credit of R25000 and always bought my appliances from then but now I receive a service like this which is disgusting.