Text Messages getting broken up?

I have the iPhone 6S Plus and my best friend has the Galaxy S6. Why is it that every time we send a text that has some length to it, the message gets all broken up, arrive at different (EX part one will arrive right away but part 2 won't arrive for another 20+ minutes), and if there are more than 2 parts the arrive out of order. We both have Sprint. Is this a phone issue or is this's Sprint issue?

Why doesn't wells fargo work?

I have an iPhone 6 and i can't connect to wells fargo at all. I've tried the app, Safari, and chrome. I can't connect on any of these! I've tried everything i can think of, deleting the app, restarting my phone, even resetting the network settings. Nothing is working.

IPhone 5s won't switch on, but when I can hear Siri speaking when I press the home button?

My dad was on Facebook, and it wouldn't load. Like, just blue borders etc. So he closed all the apps & tried re-opening Facebook and it still wouldn't show anything except blue borders. So he restarted his phone and there were no visuals on the screen. But when he held the home button, we could hear Siri's voice. Any idea why this might be happening? Or suggestions on what he could do?

How to delete my music off of my iphone?

How do i delete my music off of my iphone even after i go to storage and swipe left and hit delete they won't be removed and when i plug it into my computer it says i don't have any music on my phone when really i do

How to make website restrictions on an iPhone?

So I had to delete the Instagram app because of something. I'm tempted to go on the website. And there's something that makes me mad. Is there a way to restrict Instagram.com on my iPhone?