MTN Polokwane store

I bought a brand new phone (Iphone11proMax) from MTN in February and it started giving me problems month end of May. I took it back to the store on the 3rd or 5th of June, I can't just remember the date so well, but it was in the begging of June. My phone was booked in repairs. I haven't still received my phone yet back and it's over 5months now

Everytime I go to the store, to check how far it is with the repair, they always give me bad attitude. I don't know how many times I've went to check up on my phone, while they give me excuses. Their stuff is not kind and I'm not happy on how they treat me

The phone is till under guarantee, but still fail to help me. I'm so disappointed. I really deserve a refund of a brand new phone

They always told me they will keep updating me, but still haven't helped me with anything yet. I've been waiting for my phone for a very long time now

*** here are my contacts