Complaint

I bought phone 24 July 2021. Beginning of November 2021 it was no longer useful. December 2022 i went back to ACkermans mall of the north where I bought. The battery of the phone is raising or expanding it might explode. I was told at the store that they don't assist in terms of faulty batteries and they are not selling batteries separately and I can't get it anyway. The said this phone is ackermans phone since they started selling it already I am the 4th customer to complain about the same issue. To my suprise the very same phones are still on their shelves still selling to the clients why? I am writing this because the guy at your stores send me back home with the phone he promised to communicate with ackermans but with no luck he didn't get response to today I just phoned him now. please assist. I can't buy phone worth of R1099 and only to use it for less than 5 months this is a ****. I want my money back or they must make some means to get another me another phone but not this one. Their phone is PREMIO.