Is it possible switch to unlocked iphone 4s with bigger hard drive?

I have a 32 gig iphone 4s that i have had for 2 years now with verizon. If i buy an unlocked 64 gig 4s and bring it to verizon would they be able to transfer my phone number to the 64 gig and deactivate the 32 gig so i can pass it on to someone else? How much would they charge as well?

How to transfer downloaded music from my iPad 2 to iPhone 5?

My iPad was configured on an old desktop I no longer have, which I downloaded songs onto by youtube to mp3 download and pirate bay. I now have a Macbook and iPhone 5. I want to transfer my downloads from my iPad into my iTunes library on my Mac to then sync them to my iPhone, but it will only allow me to transfer my 'purchased' music.

Mobile phone internet use (iPhone 4)?

I'm getting an iPhone 4 soon, and i will be on a plan with 250MB free internet allowance monthly, and my question is:
Is that enough for casual use? Just like facebook, google, and sometimes skype and stuff?

Iphone problems/ replacement?

I bought an iPhone4s Jan12 On contract. The phone messed up in October time. I was having issues with battery plus there was no sound. I went to the Genius Bar and he gave me a refurbished model. Now that has messed up Everytime the phone gets to 40% battery, It cuts out. I have a genius bar appointment tomorrow, What are my likely options? Could They offer me another refurbished? P. S. I have never jailbroken my iphone(s).

How to cut back on iphone data usage

I've got a text saying that i've used 65% of my data usage on my iphone. How can i cut back on my data usage? What uses a lot of data? Is it imessage? Or just a lot of apps(don't even have that many apps).

Can you replace an bad esn iphone 4?

I was planning to buy a bad esn iphone 4 on ebay that still have apple care warrenty, anyways will they care if it has bad esn because i will just tell them the phone has a problem and try to get it replaced will they do it or deny me?