iPhone 16 pro not switching on or charging

this phone is only 2 months old I can’t believe the problem would be a dead battery.

I have tried all the suggestions, rebooting, using different connections to charge from apple, leaving it charging for hours. But this is the second day and it’s still not powering on nor is it rebooting/restarting. im quite disappointed honestly ! Paying so much for a new phone for it to just shut down!