Poor Service

I bought the MTN Nokia C1 mobile phone on the 08/09/2020 paid cash for it From ACKERMANS SHOP 14 Garankuwa shopping centre Mangope highway *** Serviced by Dora Ramokoka The phone started giving me display problems as it would fade and switch off, on the 30th of September the screen got worse. On the 01/10/2020 I returned the phone to the store and the lady who assisted me was Keamogetswe. She explained to me that the phone will be taken in for repair and I should wait 21days excluding weekends, which meant I would get it back on the 28th of October. I went to the store to check the phone and they said it has not been returned. On the 3rd of November 2020 I went to the shop again and still it is not back. I requested to see the manager, she came and when I asked her how come the phone has not returned she became very rude and I asked her for her name she refused. I also asked for any other contact detail I can inquire about the phone she refused and left me,and said she will try and call me when it's back. This kind of service(if you can call it that) is appalling to say the least. It is always easy for retailers like Ackermans to take our money, but when it comes to giving us reciprocal service, it is nonexistent.