My itunes/app store account doesn't work?

I have a iphone 4 and i don't know why but today when i tried to download an app it suddenly said that i can't connect to server? What does this mean? I know my apple id and my password and it still says that its wrong: L i have made a new apple id account but it still does not work?

Can my iPhone be tracked if it's turned off?

My mum doesn't let me go to my boyfriends house so I always make excuses saying I'm going to town when I'm actually going to his. She told me she can GPS track my phone to find out where I'm at so she knows I'm not at his house. Can it still be tracked if turned off?

How can I prevent it from being tracked? It's an iPhone 5

I brought an iPhone sold it now the buyers saying its barred?

About 6 months ago I brought an iPhone off a decent looking bloke at the time, a week after I dropped it smashed the screen so I got a new one and threw that to the back of my drawer, last week I remembered it tried to turn it on but no response atall, I tried everything but alas I had to sell it to someone with more knowledge, he brought it off me and a week later started ringing me threatening me saying its blocked. My thoughts where he had tampered with it at first but then I thought maybe the bloke I brought It off had intended to defraud me, so my question is if I had no way to know the phone was barred/blocked how is this my fault? As far as I'm concerned he's lucky he got it on

Added (1). Clearly people don't get the idea, my second phone wasn't an insurance job, i went out and brought a new phone, i didn't have insurance

What's going on with my IPhone 4?

My phone just died so I plugged it in and it came back on. The Wi-Fi wouldn't connect automatically so I went to the settings and went to Wi-Fi. I went to my Wi-Fi and it asked for the password. I typed it in correctly and it said it was incorrect. I tryed again like 5 times and its still not working. Any help?

How to update IOS 6 on my Iphone4s?

I have an Iphone 4s and I'd like to update it but it said that I need 2GB but and i deleted more than half of my apps to get the 2 GB but it still says that I need 2 GB so how can i update my Iphone 4S.