My iPhone won't charge even though it is plugged in

Ok so I put it on charge and ever second it just buzzes, like its on silent so it buzzes, but it won't remain on charge it will buzz and then buzz again, for like 5 min straight this has been happening. I have an iPhone 4s and its only 5 months old, Can anyone please help me, i will really appreciate it! * lol so it won't remain on charge, it will charge not charge and then charge, it just won't do one thing, it changes every second

How to cancel a Boost Mobile number?

But I'm switching to Verizon today, I have bought an iPhone, and I wanted to know, can I switch my old Boost Mobile number to my new phone, and how to cancel their auto payment?

My iPhone 4 home and power buttons are both stuck. Is it worth getting repaired?

The home button has been stuck for several months now, and I have been using the Assistive button instead. However, today the power button randomly became stuck/stopped working, and I've tried all the tips to get it working again, short of taking the iPhone apart.

I'm not confident to attempt the repairs myself, and according to the internet, it will cost between $120-150 AUD per button to fix.

Is it worth getting the buttons fixed, as the phone still works perfectly fine? It is two and a half years old, so would I be better off investing in the iPhone 5?

Also, if you have any other tips for home repairs that I might not have tried, please let me know!
Thanks!

Added (1). My phone is two and a half years old, so it's long past it's warranty unfortunately.

Why does my iTunes keep opening by itself?

I'm running Mountain Lion 10.8.4, and I'm running iTunes 11.0.4. I was just on Yahoo Answers, and music blared through my MacBook Pro. Thinking it was just a bug, I went back on Chrome. Again, it opened, and played the first song in my library. It kept doing it for a good 10 minutes, and sometimes it played the first second, and paused, then resumed, and that continued for a while.

I don't have remote on my iPod or iPhone, so I can't access it anywhere but my computer. I even went to Activity Monitor and quit iTunes's processes so it would quit. No such luck.
Anyone help me?

How to copy songs from iTunes to Iphone?

I downloaded some covers by a friend off youtube using the video to mp3 converter, and I have copied them to iTunes but can't get them to my iphone. Have the latest version of iTunes.

IMessage not working in airplane mode?

I have an unlocked iPhone 4 on T-mobile. I turned on airplane mode and I turned on Wi-Fi. I tried to send a message through iMessage on my phone but it isn't sending. I'm trying to see if I can use iMessage when I travel to China for a trip for a month. The place I'm staying at for two weeks has no Wi-Fi and I'm wondering if there was a way to get internet for my phone!

IOS App name! Guess it please?

I want to know iOS app name which fills in -
_ _ _ w A _ - _ _ r _ r _

It can be - Iphone/Ipad/Itouch App
Fast and Correct answer gets the Bonus Points XD

_ _ _ w A _ - _ _ r _ r