DONT BUY PHONES @ ACKERMANS CONNECT

I bought a phone @ ACKERMANS CONNECT EYETHU MALL on the 22 December 2021 then on the 23 December 2021the phone wouldnt switch on and i took it back. The store manager Simphiwe (manager who lacks customer service skills and extremely rude). He said the phone is fine its not faulty. I took back the phone then same problem started happening again i took back the phone. He said he will take it to repairs. Problem is this phone is hardly a month old and already has been to repairs twice and worse i took it back within 7 days and he refused to give me a new phone or my money back. Simphiwe is very disrespectful and how can i keep new phone thats been to repairs twice? I regret buying phone at ackermans connect. They sell faulty cellphones and refuse to replace neither pay back my money.