Samsung Won't Repair Flip Phone Still Under Warranty

I have a Samsung Z-Flip-4 still under it's 24 month warranty that is giving software malfunctions. I took my phone to SSS Cellular at Edward Road Bo Oakdale, Cape Town to have a look at. To my surprise I just got told that my phone fell, and they cannot repair it under warranty. My phone has never fallen or touched ground for that matter, not a single visible scratch on this phone but I get told my phone fell. I have no foot to stand on I just have to accept their finding, they have no ways of proving it fell, but yet I have no proof that it didn't. Now I must just accept the fact that even though the phone is still under warranty until next year February 2025, that it won't be fixed by Samsung. It is a world-wide known fact that these fold and flip phones have issues, but I think the come backs are so immensely huge, that they will find any ridiculous excuse not to fix nor replace these phones. To have the screen fix is a whopping R12 000. I think it is totally and utterly disgusting to expect Samsung Clients to just accept a technician's findings without any real proof of such. I have been a Samsung Fan for Years, but I'm deeply disappointed about the experience, and customer service I currently get to have my phone fixed. It started a few weeks ago, where my phone would shot neon lights into the sky in a dark room, that's when I realized something is wrong. Then it started getting worse, the screen went neon green, when I close the flip I struggle for hours to open or get the screen activated again now I'm to blame for Samsung's mishap with a flip phone, how is that fair?