Buying an iPhone 5 from Best Buy?

I want to buy an iPhone 5 from Best Buy because they are selling them for $150, $50 less than at a Verizon store. My contract isn't up until March 2014. I have a basic phone right now and hate it. My dad is letting me use his upgrade though (he rarely uses his phone). I know I would be able to use his upgrade at an actual Verizon store, but would I be able to use his upgrade at Best Buy?

Most protective case for iPhone 4?

I don't care how bulky it is, but I want a very protective case that will protect my phone if I drop it cuz i'm very clumsy. I would prefer under $80. I already have a Lifeproof and it is not lifeproof! It cracked so what other cases r there?

How do Data Plans work for iphone 4?

I'm connected to Wi-Fi and playing an app that doesn't connect to internet, but then I checked my data plan and it just rocketed form about 2.00 to 6.00 out of 300. I know that isn't close to the limit, but I just want to know why it did that.

How to make a free App for IOS?

I have a IPhone 4S and i wanna make an app for IOS! I want to make it for free and don't wanna make any money out of it… Just FREE! I want to make it free on app store and make it for free, if you know please let me know!

How much is a second hand iPhone 4 worth?

Just wondering if anyone could help, i want to sell my iPhone 4, but i have no idea price wise. Its got a small mark on the screen and a few wear and tears as i've had it for over a year, and it doesn't come with the box. Only comes with 4 cases and a charger, it works great though. Its 8GB, and locked to orange/ee/t-mobile, do you think £120 is a ok price for it? Or more? Or less? Please no silly answers with people saying its worth nothing/iPhones are crap etc. Just want a proper answer.

Can't get on internet unless using Wi-Fi?

Recently I got a iPhone 5 today, and I can't get on internet unless using Wi-Fi? Someone said to go to: Go to Settings > General > Cellular > Turn ON cellular data… But I don't have any of that please help