Gaming monitor warranty

I brought in my gaming monitor not too long ago that was still under warranty a few days before it falls away but I brought it in time but a day later I got told they won't be able to fix the screen, when I went back to fetch my monitor one of the workers told me they were told to void the warranty as it is too expensive to replace and said the monitor had fallen and won't fix it, I even took off the bubble wrap to show them if they see any signs of the thing being fallen and there own workers at the shop were surprised but they just made up there own thing to just not fix my monitor, they would only fix it if I had pay for the screen to be replaced if i paid off which cost the same as a brand new monitor, I'll never purchase a thing at this place ever again, bull****ters