Poor Customer care Hifi Corp

In the year 2015 I had bought a 50 inch TV from Hi Fi corporation. It had come with a 2 year warranty and I had taken an extended 3 year. From Date of purchase till present the TV has been repaired thrice. In December 2018 it had gone off for the 4th time and I had enough. I had called hi Fi corporation numerous times and I was put from one person to another. I then took it to a branch closer to me ( Cornubia Mall Durban) and requested that my TV be replaced. The guy had told me that the repair team is on holiday and that I should take my TV back home and they will send a person to pick up from home. In January after I had called, a guy was sent who had told me that they worked throughout the festive period so hifi Corp ****. I visited the Springfield branch and had explained this story to the manager who told me he will call the day later. I have recieved no call till today with no TV from December.