I CANNOT SEND OR RECIEVE TEXT MESSAGES FROM NON IPHONE USERS

Your iPhone will rely on SMS to send text messages to non-iPhone users. SMS is a service provided by your cellular voice provider. Have you contacted them yet to verify that there isn't something amiss with their service for your account?

Ok, see if the following support article can help:

• If you can't send or receive messages on your iPhone, iPad, or iPod touch - Apple Support