Why won't some songs transfer from my iPhone to iTunes on my computer?

I've purchased many songs from iTunes on my phone and when I hook my phone up to my computer, most of them sync and are added to my library but some do not, which means when I go to the iTunes Store, it says I haven't purchased those songs when I actually have. Is there anyway to get them to sync onto the computer or should I try emailing Apple?

A lcd screen crack on my Droid Razr Maxx?

Well… I was in Biology class playing on my phone (DROID RAZR MAXX), and it was working flawlessly. I put it in my pocket and walk to my History class, and pull it out, and my screen won't turn on. All I get is a green blob of light in the bottom corner. So I'm like what the heck, and show my friend. She said the same exact thing happened to her iPhone, and I noticed that my lcd screen was cracked. HOW COULD THIS HAVE HAPPENED? The only thing I can think of that is viable is overheating, as my phone does sometimes get pretty hot, but I didn't know a screen could crack from it. Well, it cost my parents $140 to fix, so they told me to either switch to a basic phone until my contract ends, or continue using the droid, but if anything else happens, I'm paying. I think this is totally fair, but I just wanna know if anyone has had something similar happen? Especially with a Droid? I wanna continue using the Droid, because I'm pretty good at protecting it, but overheating is just something I can't really control… Well at least I think (Can I?), and being a teenager, $140 isn't exactly something I just pull out of my wallet without serious thought. So basically:
Has anyone else had this happen? AND
How can I prevent my phone from overheating?

Iphone 5s won't connect to itunes?

I have a iphone 5s I try to update it but every time I connect it to iTunes, iTunes stop working and close it self I can't update I google on iTunes forum but no help like all the time the genius on apple don't fine a answer thank you for any help, any body can give me.

Face time on my iPhone 5 ios7?

I can't seem to face time my daughter we used to face time all the time, it just disconnects or just rings, it works with some people not all, does anyone have this problem or know why?