Extremely bad service

I bought a Sansui 55" TV on the 19 Jan 2021, 17 days later my TV is not playing. I then took it back to the store I'm told it has to go back for repairs, I'm not satisfied because the TV is not even a month old so I'm asking for my money back, the store manager Mr April tells me to call head office and ask for a refund because theres nothing he can do. I call the head office and given *** and a 24 hour turnaround time. 24 hours later I call them as no one has called me, I talk to Sithembinkosi Khanyile who sound like she's sleeping, she tells me she's escalated my query and gives me another 24 hour turnaround time which is unacceptable for an escalated query, I then ask to speak to her supervisor Sameefa Fakir who's unable to take my call and does not have a direct line. All I'm asking is a refund on the broken TV