Exact's appalling customer service

I bought a Hisense device @ Menlyn, the cashier there didn't explain anything to me as they should when you are buying a gadget. The phone then gave me technical difficulties, I took it back to the store 3 days later and they said they could not exchange it. I went to another TFG store and they wanted to book it in for repairs when it was within the 7 days of exchange warranty , I refused and demanded that it is replaced. The cashiers said they'll have to obtain permission from "3g" , so they'll send an e-mail and revert to me which they didn't ,2 days later I call to follow up and there was no feedback. Only after I had lodged a formal complaint with TFG did their manager call to resolve the issue which also was not successful because during their back and forth with me carrying the phone around , it fell and had a minor scratch. Had they been competent from the beginning the issue would have been quickly resolved.

It's almost a month now but I have not received a phone, they instead booked it in without my permission nor signature.

TFG is not providing feedback, the store is not calling.

I had to go buy another device when I had recently bought one from exact and THEY DO NOT CARE, it's business as usual.