How many video storage can fit on iPhone 5

I have a concert tomorrow so I've gone and put all my data, music, apps, photos and everything onto my computer. I reset my phone and now I have 12.8GB spare

I want to record 2-3 hours since I want to capture a lot of this night. I'll be using a camera for photos though because it's better quality, but only allows 30 seconds of recording.

Anyway, will I have enough GB to record and most importantly is battery life an issue here?

(it's an iPhone 5 with ios7 but I don't know if that makes a difference)

How to stop my calls from being forwarded to this stranger's number?

Phone: iPhone 4 (CDMA)
Service Provider: Page Plus (Verizon)

Ever since I bought my replacement iPhone 4 a few months ago, any calls that I ignore are getting forwarded to a total stranger's phone number. I do not have a voice mail box set up, and I have never set up call forwarding with any phone including this one, so I can't comprehend how this keeps happening. I can't even set up my voice mail, because whenever I call to set up, I get the usual "The caller you have reached has a voice mail box that has not been set up" nonsense, instead of the prompt to set up a pin/greeting.
I've had the same number for almost a year and the phone I initially activated under this number never had this issue. I was able to activate voice mail and all. It wasn't until I dropped my old phone in the toilet and bought and activated this new one that the problem began.
Can anyone tell me what to do about this?
Or at least tell me I'm not the only one to have ever had this problem before because everyone's been looking at me like I'm nuts whenever I explain the situation.

Give me an Instagram account?

I bought my iPhone off a friend, and i'm unable to make an instagram account due to her making ones on the device previous. If anyone has a spare account, or could make me one please comment… Please!

10 POINTS BEST ANSWER.

How much does iPhone 5C costs?

I really want iPhone 5C for my birthday + Christmas + graduation. I went to Verizon site and it says it generally costs $549 but with 2 year contract its only $99. I don't understand that. I do have to pay for plan right? And pay the whole $549 the whole year? How much will I pay every month? And which service is better?

Walmart lifeproof return policy?

I bought a lifeproof case for my iphone last week, like 6 days ago.anyways i ended up dropping it and a small piece of plastic chipped off, other than that the case looks great. I know lifeproof will replace it under their warranty, but i have decided i really don't like this case and was wondering if anyone knows if i would be able to return it to walmart for a refund? I don't know what their policy is on sed phone cases, i have the receipt and its only 6 days later

Can i get t-mobile coverage for a iPhone 5s in Alaska?

I live in Alaska and I want to buy the contract free iPhone 5s from t-mobile but for Alaska coverage it says "Service Partner". What does that mean and can i still use my phone to its full capacity here with high speed internet?

How to delete music off my iphone?

So my brother downloaded music off itunes and it synced to my phone wirelessly, i already have icloud and that auto sync stuff off, it will not let me delete it. I try to swipe it away and it won't let me, someone please tell me how to fix it.

Why isn't my 10 ft long charger not charging my iPhone after the update?

Ever since the ios7 update, every time I plug in my 10 foot charger (not made by apple), it won't charge and says that "this accessory may not be supported." It only charges if I leave it untouched for long periods of time. When I plug it in at night it is only at %70 when I wake up 7 hours later. My friend has the same charger and has no problem with hers. Any suggestions?