Faulty phone

Bought phone in March 2020 at mall of Africa , two months later the phone speakers stopped working did send it back two months later was told phone is ready only to find out that was not fixed despite being told was fixed .. phone sent back again which month later was told still at the store have not been collected after screaming then 5 weeks later was collected then got it back after almost 2months . Few weeks later again phone not working send it back now been told cannot be replaced as it’s warranty ended beginning of Oct . Should foschini made sure that phone was fixed and collected in time during first return would have picked it up before warranty collapse that phone still not fixed . Want foschini to refund me my money as I bought phone from them not MTN