Sold a faulty television.

I purchased a tv from makro nelspruit on the 23rd of June 2018 at 10:57. With the purchase I also purchased a tv licence. The tv that I bought was a sinotec 50inch smart UHD Android tv. This past weekend the home button, Netflix button and source button has stopped working. I have spoken to sinotec and they asked me to try a few things. The remote is fine after the tests and said it is the tv that is faulty. I have to book it in with makro for repairs and I will not accept this as it’s been 4 months and the tv is broken? I have spent a lot of money and I am given a faulty television. To add to the bitterness of this situation makro say it takes up to 5/6 weeks to get the tv back? How do you expect me to watch television for 6 weeks? I want a new tv, the same television replaced that is not faulty. I have only read bad reviews about makro and the sinotec brand since this problem has happened. This is just shocking and the makro staff are just terrible as well. Sort this out or I will be taking further action with this, it is not right. If it took 4 months and this happened what is to say a month down the line after repairs it doesn’t happen again? I’m not willing to do this and want this to be resolved ASAP! Sort your stock out makro.