Pathetic after sales service

I Purchased a 58 inch Samsung u7000 TV makro on the 10th of October 2023, and 3 days later logged a complaint to makro as the TV has white halo like portions on the screen when there are dark or black images being viewed, on the 13th I called makro as no one got back to me and offered to take the tv to the store as I had a van available to transport the tv as it's too big to fit in my car. The manager advised it was pointless as samsung will come to my house to have a look at the problem within 48 hours or the following Monday. The next day Saturday the 14th a samsung agent calls me asking to dial into the tv remotely to fault find and I was not at home and he said he cannot call me layer at he knocks off at 12 and it was around 11am. He then asked what time I would be available on Monday the 16th and I advised him I work and no one will be home so only after 5pm to which he agreed he will call me then. Today the 16th the same guy calls me at 09h21 asking if I was still only available after 5pm to which I confirmed after 5pm, he then said he will call me after 5pm and ended the call. I then rushed home to make time for this to happen and nothing, at 17h20 I then called your office asking for assistance as I was awaiting awaiting a booked call appointment and the lady said I mist wait they will call me, it is now 19h00 and no call back. Seriously this is really unacceptable especially when I had to make time for this to happen and asked for someone to rather come out then to remote dial into my TV, the tv is only 1 week old and I am having issues. You guys don't keep to you appointments and is causing me an inconvenience already, please listen to the call to my number as the guy satiated all calls are recorded, my number is ***. Really pathetic service from you guys and I will be writing to your managing director Tae Sun Lee to express my concerns as I have his details. I am really disappointed that your after sale service is so pathetic. Please get back to me as a matter of urgency or I will contact the CGCSA.