How much is am limited data plan?

I want to know how much a limited data plan is for the iPhone. Because I'm usually around Wi-Fi and don't need unlimited so how much would it cost?

Skype app on iphone! Not working?

IPhone 4s. Just downloaded the skype app. Entered my info.says i have it wrong.tried a lot, deleted and reinstalled the app.still not working. Any help/ideas?

Someone called me on blocked number?

I have an iPhone 4s it came up "blocked" as where the name usually is then underneath it said unknown

What does this mean? Does it mean the person blocked my number?

I never blocked anyone

How to block a number on my iPhone? - 1

This number keeps on calling me, and I picked up and didn't say anything. Silence was all I got, and some sounds from the TV. Then he said something, but I'm not sure what and hung up. So I need to know how to block a number from my phone, or at least find out who called me, preferably for free.

How to save my music on my iPhone 3G to a playlist in iTunes?

When I plug in my phone 4 things pop up in iTunes, the device and its name, music, movies, and tv shows. How do I move the music from the music folder onto a new playlist because I can't drag the music or anything. I also got pretty much all of my music from YouTube to mp3

What to do on restriction pass code lock on iPhone 4S?

I don't remember turning on the restriction button or putting a pass code on my iphone 4s. Anyone know what do or maybe unlock it? I need to reset my phone because every sound on my phone is muted somehow. I know it's not the side button thing that turn off sound. Any help will be much appreciate.