Best, Cheap, and Update to date Nokia Lumia?

I want a phone (my first) and I've been thinking of the iPhone 4s or Nokia Lumia. It needs to be cheap though not over $100 dollars. I mainly want the Lumia because I like the OS but it doesn't have Snapchat. That's when the iPhone comes in. But it needs to also be update, Ex: iOS 7 or Windows 8.1

Added (1). I also don't plan on actually using it as a phone

Added (2). I really don't plan on buying it with a contract but just having with a Carrier. But buying on Amazon or Ebay

Added (3). Note: I should of read this over instead of constantly updating. I want to know which Lumia in the series is the cheapest with Windows 8.1 like for a random example the 1020 even though its expensive

Iphone won't display messages?

When I tried to unlock my phone to check a message it froze and I had to turn it off and on again. When I went to messages no messages were displayed. BUT it says the amount of messages that I've got but they're not showing up. What is happening?! I urgently need to reply to the text I received. Why isn't it there? Is there a way to get them back? They were there until I had to turn my phone off and on.

Added (1). Another thing is that when I select "messages" it goes straight to "create a message."

Added (2). I can't. It's 4 years old and out of any guarantee. Plus I need to sent the message back like right now.

IPhone 4s delayed in message notifications?

Normally every time my phone receives a text I get a push notification and then another 2 minutes later. But recently (the last day or so, on and off) it won't notify me immediately, instead it'll send me a notification with the text but say 58 minutes ago or something, without notifying me straight away. It's really annoying! Just wondering if there's some setting I need to refresh? I've switched my phone on and off a few times but it hasn't changed anything.

My friend also says that he keeps receiving certain messages loads of times and I don't know what's happening haha.

Any advice from iPhone users would be much appreciated.

Bought pre owned iphone 5s and don't have icloud account info or passcode. What do i do?

Well I bought an iphone 5s off ebay and the seller had done the factory reset through settings and we both thought that was all that needed to be done but when the phone arrived, I went through the initial setup and find out that the icloud account is still on there along with the 4 digit passcode.
However, the seller only had it for 2 days and doesn't remember setting up either.
Can I take this into apple and have them restore the phone or what?

Any phones with a good camera like the iphone 5s?

I've been wanting to get a new phone for a while. I have the HTC one s right now. Its good but its cracked. I honestly don't like iPhone's at all! But the cameras are really good. Note, half of what I use the phone for are pictures. So any phone with just as good as a camera as the iPhone or better?

Should I take my iPhone to Best Buy or AT&T?

My phone has crashed. All these numbers and computer lingo popped up in the top left corner and it will not come off that screen. It reads "error, unclean shutdown". At one point the screen was completely red. I purchased my phone at Best Buy but my service is through AT&T. Does it matter who I take my phone to for replacement or repairs?