Iphone 5 overheating/hot to the touch?

I've had multiple white iphone 5 and it keeps getting hot/ over hearing. Has anyone having the same issue and does the balck iphone having the same issue?

My iphone 3gs won't receive texts?

My iPhone hasn't been receiving texts for about 9 months now. It used to be that I could just restart my phone and I would receive my texts.
however, this doesn't actually work any more… I have to ask whoever I'm texting to send it again and then I usually receive it twice. Can you suggest anything that will fix it?

Someone keeps calling me with a blocked number?

Since a week ago, someone that my I phone refers to as 'blocked' keeps calling me. They don't talk, I just hear rattling and other strange noises then the call ends after about 5 seconds. (I think half way through a voice mail mentioned below I heard a toilet flushing or something similar) just this afternoon when I'd totally forgotten about it; they must have left a minute or so long voice mail of random noises and rattling. As far as I know there are no blocked numbers on my phone, if they were telesales or something; surely they would speak at one point. I look through my calls list and see the name 'blocked' there twice (they called twice).in the voice mail I struggled to make out any noises, it was just the usual rattling; they phoned me twice within 5 minutes and left it for almost a week. I'm quite cautious as to who I give my number to and for them to appear as blocked, wouldn't they need to actively hide their number? I can't reply to them either. Is there any way I can record the calls and show them to people who might be able to help? Can I unblock the number and see it? I don't want to stop them, but catch them in the act and find out who they are. I'm using an iphone 4 on IOS 6.1, o2UK network. I'll pass on services to unblock the number; but I here there are things you can do to reveal it for free or with a trial. I know it might just be my mates messing about or someone with a broken mic that doesn't realize it (doesn't explain blocked) but surely I can find out who it is.

Which waterproof iPhone case shall I buy?

I have a iPhone 4S and I'm a photographer, obviously I can't take my DSLR underwater with me, I'm going in holiday in a week from now and it's massive water park is the main attraction. As I'm a photographer I enjoy taking pictures and video and underwater video is awesome! I recently bought a Lifeproof Case off amazon, I spent £30 on it and it was great until it broke, I did some research and found out i had purchased a counterfeit case. And if I wanted to buy a real one I would have to get it off the lifeproof website and pay in dollars and postage and all that hassle, amazon is the best place for me. So I was just wondering if there are any good waterproof cases out on amazon? I need one where I can access the buttons and stuff like on the lifeproof, I don't need access to ports (headphones and charging) though. Money isn't a problem as cases aren't expensive, amazon would be more helpful but just if you know any cases?