Return of s23 phone

I bought a Samsung s23 ultra phone last year from them, I started giving problems a few months ago, I asked Takealot for my invoice, I still didn't receive it. I took the phone to Samsung to see if they could fix it, they said the phone was blacklisted prob due to it being ******. I wrote to Takealot a mail, they didn't reply on my specific questions, they just said I can return it. I returned it and asked for my money back as I lost all confidence in them. It's been a few weeks and still no resolution, they just keep telling me it's being inspected and I must wait. The phone cost 29k, it's a lot of money they took from me and now I'm not getting any service. I'm very disappointed