Iphone 5c not charging, wont turn on?

So I've only had this phone for like 3 months now and before now I've had no trouble with charging. But today when I tried to get it to charge it just wouldn't. So I researched a little and decided to do a hard restart. Once I did that, it turned off and wont turn back on and every time I try and turn it on it gives me the low battery symbol and the charging symbol at the bottom,
I am very frustrated at this point and I have no idea what to do so help will be greatly appreciated.

Added (1). I have left it on the charger through the whole process

go to nearest apple store

you are still under warranty. Call apple

only had it for 3 months.

go to the apple repair center. Warranty is valid for 1 year.

I would say it would have to be your charger, try buying a new one, a decent charger tho, not like those cheap ones from the dg or walmart. If that doesn't work, as the previous posters say go to apple, you are still under warranty.