Terrible service ever!!!!!!!!!!!!!!

I bough a new laptop at Game early this year , the brand was ASUS for over R4000 the laptop had an issue where it switched off and the screen became blank i took it backto game for repairs. It came back and they said its repaired. Guess what? it gave the same issue after few days. I took it back again and i though maybe its the brand, i must take HP and pay R500 extra for Hp, which i did. HP did the same thing and i took it back for repairs. They came back saying the PC needs a software update which i was never told about as the point of sale, and they said it will cost R400. Bare in mind i bought this at the beginning of the year for my sister's studies and now the Laptop couldnt serve the purpose she is struggling as she is a Unisa student. when they booked it off for software update, they sent me an sms to say i must collect it, its fixed. when i get there, it came back because they failed to inform the supplier that they will pay the R400 for me. i am still waiting even today for HP to come back where they said they will pay the R400 for me since i got this bad experience. i know game is a big company but i am so dissapointed with this trasnaxtion experincem i am not going to buy anything from them again im sorry. now i want my money back, i have rights as the customer, i ill buy the laptop somewhere else. i dont owe game anything for me to tolerate this kind of a service. its my money for Gods sake for something i couldnt even utilise. its now the end of the year, ive been going through this Laptop Saga