My lock button does not work and my iphone 4 won't turn on

My lock button does not work. And my iPhone randomly turned off. I tried pressing the lock button as hard as I can, but it still won't turn on. Before my phone turned off it was 73% . I tried plugging it into my laptop and I had no success. Are there any ways for it to turn on? Please and thank you.

Added (1). I also don't have time to go to the apple store.

Can a iPhone 4 get N.O.V.A 3?

I've recently bought a iPhone 4, I want to get N.O.V.A 3 on it, can my phone run N.O.V.A 3, and if so will it run smooth?

Why so many english don't like Clive Tyldesley?

I'm from Mexico and I downloaded FIFA 14 on my iphone, so I a decided to download the commentaries in english because I don't like the spaniards Manolo Lama and Paco González and I think Clive Tyldesley and Andy Townsend are good commentators, but I've seen on youtube must of you don't like them.

Sorry for my bad english.

Are knock-off generic brand iphone chargers safe?

I'm looking to get a 6ft or longer charger for my iPhone 4S. I tried apple's website and they only had longer chargers for iPhone 5. I found a bunch on amazon, eBay, and other generic websites for much less than apple chargers, but I read online that these knock offs aren't safe and can harm my phone and possibly even harm me. Does anyone with more knowledge on chargers/ any electronics background know if this is true and a big problem or not? I don't wanna ruin my phones battery life but I need a longer charger for my dorm. And if the rumors are true, does anyone know where I can find a safe reputable brand iphone4s 6ft-10ft charger?

What type of leggings are these?

They are loose everywhere and have cuffs at the waist and the ankle. Where can I buy this
http://www.zappos.com/product/8243766/color/453679?splash=none

How to change where my App Store charges go to?

My iPhone payments are under my parent's account. If I wanna buy an app, does it charge automatically to their account or will it ask for the information? Is there any way to change the one app payment to my own debit card?