Samsung provides 1 star service to their customers

I purchased a brand new Samsung galaxy S21 plus from Samsung in April this year. In June the phone just produced a black screen with no impact, damage or cause. Multiple other cases have been reported on the same phone, whereby customers had the same issue. I sent it out to Samsung and they had said that there was an issue with the LCD. They had promised to repair the LCD. It took more than a month. When I called them to ask about the phone, they had said they would replace the phone because they had no LCDs in stock. So I agreed and waited. Thereafter the warehouse burnt down and I was told that they cant find references. So i spoke to girl named leshy, I sent her my documents and references and she said they are handling the matter. I then tried contacting Samsung head office in Durban. I spoke to Nelson from voice of the customer department. In my opinion Samsung are a bunch of *******. It's been 3 months and they have done nothing about my phone. Rather support A reliable brand which can provide you better service.