Text/ imessage/ unread texts issues
I'm having some serious issues with my imessage/ texting. After going through all the steps nothing has worked. I've turned my imessage on/off, reset network settings, power reset it, turned it off and pulled the SIM card out, deleted all my messages, turned off LTE on/off, typed in the phone number of contacts instead of selecting their name, tried different emails for imessage, and nothing has helped. My job requires a efficient cell phone that needs to be reached and it a instant manner. Any advice would truly be appreciated. Thanks.
iPhone 5s, iOS 7.0.4