IPHONE 4 KEEPS SENDING TEXTS OLD AND NEW OVER AND OVER?

This just started happening a couple days ago at the most. Whenever I text somebody they always say that I keep sending the same messages 3-4 times, even when I only send them once. I've looked it up and everything and nothing is working. I deleted all my messages, reset network settings and everything! I'm now testing it on y mothers phone and she's getting my old texts that I sent hours ago, now, even my new ones keep sending duplicates. This Is really annoying me. It's up to date and everything, 6.1.3. I do have good service when I send then, it almost never says the sending… Part. My carrier is sprint if that helps?

What to do if i tried to download ios 7 beta 2 and it stopped?

A week ago or something i downloaded ios7 on my iphone 4s. I don't have an apple developer account, so i did it for free. Today i got a message, something like "Upgrade to ios 7 beta 2." I did that. Now it is downloading, but it is stuck, and it has restarted many times but it still don't work.
And one more thing: Is it illegal to download ios 7 for free? And if it is, will apple not be able to fix my iphone?

Can I Buy a SIM Card for My Unlocked iPhone?

I have an unlocked iPhone 4 that was meant to have AT&T as its only carrier. Could I buy any SIM card that I want and make it work on my iPhone? And are there any SIM cards small enough to fit inside the iPhone?

How to change my mobile no and stay on same contract?

I just got a new phone as a present but had wanted to change my number with it, I have an iPhone 5 and am on an O2 contract is there any way I can change my mobile number? I don't care if I have to pay there are a couple of people sending nasty texts to me and I only want a few people to be able to contact me!

Why won't my iPhone and iPod delete messages?

So I got a new iPhone and I transferred everything from my iPod to my iPhone but the messages on my phone and iPod won't
erase. I have deleted everything on the iPod except the messages. How can I delete the messages on both the phone and iPod?

Iphone 4, can't send international imessage?

I have a friend who is visiting and he has an iphone 4s, I have an iphone 4… He's successfully been able to text other people while here but can't seem to send them to me, nor I to him. He's from the UK so I have his phone number set up with the country code correctly and he does mine but it never works.

Could this be because I have an iphone 4 and not a newer one? Or is there another issue?

Can't manually manage music on my iPhone 5

Every time I connect my iPhone 5 to my computer I have to check the box that says "Manually manage music and videos". I save the changes every time, but when I go to plug it into another computer, the box is unchecked and I have to re-sync my iPhone and delete all the music from the previous sync. Is there any way to avoid this do I can have all of the music from multiple computers?

Buying an iPhone for Tmobile?

I want an iPhone, and I know Tmobile now carries them, but it is so much cheaper to buy them online. So I was wondering if it possible for me to buy an iPhone, that has been used by any previous carrier, and simply use my Tmobile sim card and have it just work like that. I don't want to have to jail break my iPhone. Or should I simply just buy one from the store?

Where to listen to FIFA confederation cup?

I'm sitting here watching the Spain v Italy game live over the Internet on espn. For the life of me I can't find a way to stream live audio of the finals this weekend. Just seems a bit odd to me that I can watch it for free but can't listen to a broadcast on my iphone while I have my earbuds in at work. Anyone have an app, station or legite (no downloads, tracking or pirating required) website for me?