iPhone 13 will not power on, after leaving it on the chager all day.

Two weeks ago we purchased an Iphone 13 for my father.

Today in the morning he had a good amount of charging but kept it on charge anyway before leaving for work. Once he came back the phone was not turning on and the screen is pitch black. We tried the volume up and down thing and home button thing and it still won’t turn on. Does anyone know how to fix it?

[Re-Titled by Moderator]