Disgusted by poor customer service at Game Store in Mthatha and Centurion Mall

I bought an ASUS laptop for my niece at Game in Centurion Mall on 12 June 2018. The laptop was collected at Game in Mthatha and has never worked without problems. In less 10 months it was returned to Game in Mthatha twice. Game in Mthatha said it is uneconomical to repair and they gave it back to my niece even though it is still under warranty. What must she do with it? Even now the laptop is less than 12 months old. What does Game think I must do with a laptop that has never functioned properly even though I paid a full price for the laptop? I spoke to the manager in Centurion Mall and he is as unhelpful as the rest of the Game customer service in Mthatha. I have heard stories about Game's shenanigans but no I learned my lesson and this is probably the last item I will ever buy from Game.