My iPhone 5 isn't receiving text messages?

I have an iPhone 5, it's about 4 and a half months old. It worked fine until a few hours ago. I have to do an entire system reboot (home and sleep button at the same time) if I wanna even check to see if I got a message every single time I wanna check. I'm having a very important conversation.

Make sure your Mobile network is on.

Can you check Setting>Messages>Receive At> You can be reached for messages at: here you can see "Phone" make sure this is shown as "Phone" if this is "Error" switch iMessage of and on, this will verify you number (Perhaps your wifes).

please let us know if anything changes

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