Paid for a brand new broken tv and they wont refund me!

Bought a hisense tv from them in November 2018. The tv gave problems from day one. After month of techniciancs via email and us emailing the CEO of hisense south africa with empty promisses to have the tv repaired at our house we eventualy dicided the only whay would be to take it back to incredable connection as they need to refund us. This was done on 21 May 2019 on which we were informed they cant refund it as they first have to have hisense try and fix the problem. We agreed as they told us this wont take more then 3 weeks but should be about 2 weeks. After waiting almost 4 months without a word from them on my tv i went back and asked for my money back as i have now owned a tv for 10 months that i have not had the pleasure of using. I was informed to phone head office by Fanie at incredible connection to resolve the matter and speak to Boitumelo as she is handling my case. I phoned her on 10 Sep. After explaining that i want my money back she promised be that she would get back to me in the next hour. She **** as she never phoned me back, its now almost 24 hours later. Wont ever support incredible connection again!!!!