Unresolved Issue for my Samsung smart TV

Last year I bought a Samsung 65 inch smart TV at Canal Walk incredible e connection. Few months ago I noticed something strange, that Channel 203 and 320 on the DSTV now app were having a delay (keeps on buffering). Almost two weeks ago I took the TV back to Tygervalley incredible connection because the channels stopped working. Darren the technician performed a troubleshooting with DSTV remotely and dstv confirmed that the problem is not coming from their side. I'm told by Darren that Today the Samsung technician was on site to fix the problem, but the results were not positive.

I spoke to the Samsung technician from Liptronics (Edward), and he informed me that I will have to go back to DSTV and ask them to do troubleshooting again.

My worry is that why should I go to DSTV if the app that is malfunction is a preloaded app. for as long as the TV is under warranty and there are no damages caused by myself I expect incredible connection to resolve the issue with the 3rd party (dstv/multichoice) without involving me.

Secondly if multichoice and Samsung are unsure of the really cause of this problem, I suggest that I get issued another unit because this problem happened while the TV is under warranty.

Lastly the 3 week waiting period for repairs will lapse next weekend, I hope you will be able resolve this issue before that period lapses.

Definitely it can't be my problem that the TV app is malfunctioning.

Thanks