Where to get iphone 4 unlocked in New Delhi?

I have an iphone 4, i brought it from US. Its activated with iOS 6, i want to unlock it. Please tell me where should i get this unloacked and whts the cost of unlocking. Please reply.

What case would you recommend for the iPhone 5?

I'm getting the iphone 5 for christmas/birthday off my parents and another family member has offered to get me a case. I've been having a look around in store and online and i like the look of the flip cover ones but i don't know if having to open the front would annoy me. Has anyone else had any problems with this sort of case? Also what other sort of case would you recommend?

Will over charging my iPhone 4S so damage to my battery life span?

I usually charge it when I go to sleep 930pm till around 6am when I wake up, and I understand it only takes 2hrs to charge the battery. Will this do damage to my battery lifespan? I know it has happened to my other phones I had in the past (androids) and I don't want that to happen to this one.

My Wi-Fi for my iPhone 4 doesn't work anymore, why?

My Wi-Fi used to connect right when I enter my house and it maintains connection throughout the whole house, my Wi-Fi network no longer shows up on my Wi-Fi list I haven't noticed any other Wi-Fi networks around town or in the city.

Reasons a teenager should get an iPhone?

What are some good reasons that a well behaved teenager should get an iPhone for Christmas? And nothing along the lines of "because everyone has one". That is not a good reason.

I sold someone something on eBay and he wants a return because the shipping?

So I sold this guy a iPhone 3GS and I stated in the description it had a small crack at the bottom of it and he knew that but he's not worried about it and when he received the item he said the power button was hard to turn on and the speakers didn't work. I said no returns accepted before he bought it and I fully tested it out before shipping it too him. He sounds pissed and I told him it was most likely shipping because there's a lot of stuff being shipped out to people all around the world so it could have gotten crushed or what not I also gave him 25 very nice and expensive screen protectors for a I touch 4g that I laid 50 for them and he bought this iPhone and the protectors as a bundle for 90 and I said you got a good deal and it wasn't broken before but he wants a refund… I'm not giving it too him because I said I wouldn't. He said its my responsibly to get it too him and I out bubble wrap in it for him and stuff. What do I do I'm not giving him a refund or anything

Little smudge on the back of my iPhone

Should I be worried? It doesn't interfere with the pics. But I can't seem to take it off. It's a little smudge. I might be overreacting but I take care of my stuff. Should I just sell it and get a new one?