IPhone battery is weird and phone won't turn on.
Hello, I'm having some problems with my new iphone (4s) and I need some assissstance. I recently received a new iphone via insurance (My old iphone broke) and it wont turn back on. I first noticed a problem started when I plugged it in to charge the battery life went down instead of up. I disregarded this because people said it needed to "calibrate itself" and to "let it die on it's own" so i let it die, I immediatly regret that descion. Now, with constant charging throughout the night it still shows no sign of life. I've tried everything i can think of like: Plugging into computer, plugging into wall, holding power button, holding HOME + POWER button, holding power +home + letting go of power button but still holding home button. I'm lost! what can I do? Should I have it taken in? Also, it's worth mentioning that itunes won't recognize it either, meaning it doesnt even think anything is plugged in.
Thanks a mil,
Snorris1234
iPhone 4S, iOS 7.1