Bad service and hardware

So.... I purchased the 65 inch 4K UHD Samsung in December 2016 , it is constantly connected to the internet through a LAN cable which means the firmware is always up to date and I have taken steps to protect all my electronics by installing a UPS in the house, I had a issue last year with the "one connect" devise that hosts all the HDMI and USB ports. Last year in the end of November I switched the power off to fix a problem with the electric fence (bare in mind the UPS is connected) and when I turned the device on I had a pop up saying TV will restart One connect device connected and kept on rebooting in a loop. I did some research and found that there are some more complaints around the world, Samsung sent a techi out to master reset the TV and it solved the problem. Last weekend 6th of April the same thing happened and gave Samsung a call again on Tuesday explaining the issue and they documented it, I ask for a support come out and said it would be fine ( I did not receive a message or email to confirm it) I called in today to ask if they are still coming tomorrow and said the call was never logged yet the very helpful lady read the full complaint out that I gave on Tuesday yet no action was taken! The devise was over R50,000.00 so how the hell do I get such **** service!!! I am a busy man and only have time over the weekends. I want the TV replaced or the device replaced as I do not have time for issues like this all the time as we live in a country that has power issues. I love the brand but the support is terrible !!!!!!!!