My iphone says it sent a text but really didn't

Ok so me and my girlfriend usually text from like 3-10 like straight through and that is after school, all of a sudden my phone says it sends the normal text, but my girlfriend does not get it. So at first i thought it was her phone, then i was like alright ill check with my other friends, none of them got my texts either and i know because i was still able to call them and ask if they got it and none of them said yes they did UNLESS they had iMessage, my phone still works with iMessage, internet, everything still works perfectly i'm able to use facebook, call people, everything, EXCEPT text people, but my phone does say that i sent them but my friends won't receive them! And i need it to talk to the coach of the baseball team by THIS saturday or theirs no way in hell i'm on the team, Please Please Please Help! Need my phone back!

That's an internal problem which will require a possible Master Reset. I recommend you take your iPhone to your nearest carrier store to have it checked out.

Call apple. Or get your phone to the nearest carrier fast!

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