Activation, This iPhone is currently linked with an apple id?

I had installed ios7 on my iphone 4s and then tried to restore it to 6.1.3 but when the phonee was restored it gave me a message saying "This phone is currently linked with an apple id (a***@icloud.com) i have tried about a 100times my apple id and password but it not getting activated n Yes iim entering my right username and password. Then i called apple care and asked then to look into my id and they said that the id does not exists. Now my iphone is stuck on activation process. I then registered myself with UDID code thru a website for $5 and still getting the same message. Please could ne1 tell me what happened to my iphone

IPhone 4 screen repair price?

How much would a screen repair cost for normal iPhone 4
The bottom half of the screen is badly cracked
The top half has like 7 cracks
But the screen does not work the image still appears when it's turned on but you can't unlock the phone or use the screen
How much would it be to get it fixed in Australian currency and what shops will fix it like Telstra or all phones those kind of shops

Does upgrading to iOS 7 beta 3 make you lose a GSM unlock?

I'm using AT&T GSM 16 GB iPhone 4 currently running iOS 6.1.2

Added (1). If it does make you lose it, is there anyway to get it back?

Added (2). I have a factory unlock through itunes, not a jailbroken unlock

Added (3). Well i unlocked and i'm definitely using a factory unlock that i had to pay for and then unlock through itunes, so you are saying my unlock should not be affected?

How to see who unfollowed me on instagram from my laptop?

My iPhone got messed up like two weeks ago so I decided to check on my instagram through my laptop and I saw that i lost 6 folllowers, wtf? So i'm trying to check and see who it was, but idon't if you can from you laptop without down loading anything. Any suggesting… Oh, and follow me while you at it at @kiaraaa_ovoxo

If you have an iPhone would buying an iPad be waste of money?

I have an iPhone, and I'm thinking of buying an iPad. I would have already bought one, but I feel like I can already do what an iPad can on my phone. Would it be worth it?

Also, i can't decide, should I get the iPad 2, or iPad retina display? I know the newest is going to be the best, but is the retina display worth it?

Am I covered? Can I make a claim?

Ok so I lost my iphone on holiday my phone however was not insured, but I did get travel insurance, the insurance was just under £5 from protect my bubble, it said medical; 1000000 baggage; 1000 and excess £200. Can I make a claim?