lets start with the basics have you tried another plug point / another charging plug / another cable? see how that goes to start with before we go in to deep.
So it's powering up or not now? did you try changing the plug?
changed leads, chargers. no joy - no sign of life
Have a check the port is clean as well how long have you left it connected to charge and still o life?
Best thing to try is a slow charge over night if no life in the morning I would have to say you have only 2 options 1 is to Contact Samsung Via the phone or 2 Go to a Samsung experience center and get them to have a look at it sadly 😞