Bad customer service at Game Cresta store

I usually get good service at game stores, however this has to be one of the worst experiences ever. I bought my tv at game in 2015, it has a 5 year warranty. Last month I went to game at cresta mall where I had initially bought the tv, I told the lady (Amogelang) who was at customer service what had happened and she asked for the receipt I told her I do not have it but I remember when I bought the the tv and she said she will trace the slip and call me once they find it, she called a week later asking for the box and I told her that I do not have it aswell she told me that she will call me back but now it’s been over a month, I called the store about 3 times and I was told that she is not in and I left a message as they said she would call me about a week ago. Since I have not heard anything from her or anyone at the store and I have to stare at a blank tv which has no picture but I was promised that it will be fixed since it is still under warranty. It is very frustrating when I was promised communication and now nothing is being done