I had water damage that messed up my Face ID camera on an iPhone X but the water indicators were not triggered. Genius Bar turned me down still because of the obvious moisture. I called Apple HQ from the parking lot and argued it’s rated IP67 and without the moisture indicators in the SIM tray and charge port being tripped it must be a warranty issue.

At the end of the call I walked back into the store and handed over my phone they gave me a new (not refurb) phone. Maybe if I’d argued and gotten the manager in the store the first time it would’ve been okay, but I just try to deal with Apple directly and honestly they’ve been the best support I’ve ever dealt with.