What should I do?

So, my Ipad is messed up. It's not charging in any ways, I even left it plugged for 2 ours but it doest shows the battery level. I already tried to change the charger but it still doesn't work. I tried restart it but the screen is always black. I tried to connect it at my Mac but the computer sees it as an "IPhone 5/s". If i press the button to turn it on, nothing happens.

I am really worried.