Samsung Galaxy Watch8 Classic

I bought this watch about a month ago to replace my Watch 3. 1st day I wore it in the shower and the watch turned off. The water lock was on and I followed the same steps as I usually would with my previous watch. Tried to reset the watch and could only feel it vibrate once but the screen would not turn back on. After a couple hours it decided to start working again! After this happened I didn't wear it in the shower or even get it wet despite it supposedly being water resistant to 50ft... a couple weeks later the screen would start glitching, white and black lines scrolling across, even completely going bright white as if the flashlight feature was turned on and getting really hot. The only way to turn it off was to let the batteries completely die. This watch has been a complete disappointment from my previous watch, the battery life is no where near comparable even after turning off a bunch of the sensors, what's the point of trying to track your sleep when you have to charge the watch every 36 hrs! Waiting for my watch to hopefully be shipped back to me after it went for warranty, the service ticket said the warranty was voided with no other details! Sure better not be from saying its water damage!