IPhone 5 Messaging Problems?

First, it takes almost 5 or more tries to send a message. Also, I will receive messages minutes or even an hour after they were sent. Why is this happening?

Call up apple and ask.apple sucks tbh they just want your $$$$$$$$$ i replaced my iphone s 6 times now.

How is your Wi-Fi? Mine did that too but my Wi-Fi/3G was screwed up… Good luck getting it fixed!

That has to be your carrier or connection… Not the phone.

My pictures on my phone won't send through a text

When I'm texting on my iPhone5, if I start to miss spell a word, Siri comes on, saying what she thinks the word might be, or says capital,(for words that I want capitalized). Hiw can I turn the voice off?