Cellphone

I bought a cellphone worth R2000 in December and after 2 weeks it gave me problems and l sent it back n they took it for repairs. I went back to the store stating that l di mot want it anymore bcoz this means that it is not of good quality and l cannot have a second hand cellphone that costs R2000 they can rather give me another one. As from that day nothing came back to me. I still insist l do not need that J4 core.