Cellphone - Consumer Complaint for PEP STORES

In October 2019 i brought back a faulty phone i bought at PEP after it gave me problem within short period of time of purchase, after giving it back i was told that it will be sent to repair centre i will be notified when its done, weeks past with no call i went back to enquire they said its not back yet,time went by again and i kept going back they were telling me its not back all the time, untill i decided to stop waisting my time, till this day i haven't recieved it, the value of it was R250 nokia. Would you please help me get my phone back plz