Keys on my iphone 5s keyboard unresponsive?

When I try to text, my 't', 'f', 'g', 'c', and 'v' keys are unresponsive. The responsiveness of other keys, like the "send" button seems on and off. And I have even briefly had a problem where my finger could "press" keys just by hovering near them (though it would press an adjacent key rather than the one I intended) or would just type a long string of random gibberish when I pressed a key. What is going on?

Will my Japanese iPhone 5s work in the US?

8Unlocking it is not the issue. Its currently locked to AU, but I would take it to get unlocked after I get back.

I want to know if there are any hardware differences. My friend told me he thought that US and Japanese iPhones use different antennas or something. I want to know if this is true, or if the iPhone design is standard. Will I be able to connect to a US network with it?

Iphone 4 possibly battery issue?

I have had my iPhone 4s 8gb since March and about a month ago I noticed my phone wasn't hiding a charge very good and my phone getting extremely hot when charging. I know some heat is okay bit it is hot to the point where it feels like a heat pack. Is this a possibly battery issue? We have multiple original iphone chargers so I know it's not them. Our whole family has the 4s. Mine being the newest. Should I take it in to get it looked at? I have insurance will it be covered if it is the phones battery?

How to add videos onto each other (IPhone)?

I've found 2 apps that add videos onto to each other but when I want to save to my camera roll it always says
"This will only save 30 seconds of your video"
Any apps you guys know of that is free and saves the WHOLE video?

Is Microfashion2008.com a safe site?

I have searched one favorest iphone case on this site. But i'm not sure if this site is safe to buy. Anyone buy on www.microfashion2008.com before? Is it safe or not? Any answer will be appreciation.

Should I text him again? Confused?

Okay, so Sunday night, I was hanging out with the guy I like and he was flirting with me a lot and called me cute a few times. Then he gave me his number and kept telling me to text him! So I texted him Monday morning at about 11:15 and I still haven't heard back from him! I'm beginning to think that maybe he never got my message, because he just liked my picture on Instagram about an hour ago. We both have iPhones so the text I sent him was on iMessage, and it says it's delivered, but I'm really confused. I was thinking of waiting until tomorrow to see if he replies and if he doesn't, I kind of want to text him again and say something like this:

"Hi it's ******! I texted you the other day but I'm not sure if it went through? Anyways I'm sorry if I'm bothering you. I just wanted to talk to you because I kinda like you and I want to hang out sometime? Just text me or call me whenever you're able to. "

What do you think? I really like this guy and I know he's interested in me too, and I highly doubt he is ignoring me since he seemed so eager to give me his number and told me to text him multiple times. I'm really starting to think that he never got my message! So what should I do? Should I wait one more day and then text him?

How to ship an iPhone case and how much it costs? (Australia)?

How to ship an iPhone case and how much it costs? (Australia)?

Added (1). Someone bought an iPhone case from me and I'm just wondering how to ship it and how much it costs to post it within my state?
-How do I package it?
-How should I send it? (Go to the Post Office or just put it in the red mail bins?)
-How much will postage cost?