My New iPhone 4 won't send or receive text messages?

I have checked the service centre number which is correct, I have updated the ios software thing (I'm not too clever with Apple products but yes it's been updated).It says iMessage is waiting for activation but it has said this for ages now. I have tried absolutely everything with still nothing. I can make calls, use the internet, I can do everything else! I just can't send or receive text messages… Will someone please help me?

First of all give your service plan a call, see what they say. If your iPhone is under 6 hours old things are probably going through.leave your phone OFF!(holding unlock button down and then sliding across).

I know you are probably frustrated about this, new phone lots of problems. GIVE YOUR SERVER PLAN(e.g.orange) A CALL. They can help you, its probably something very small and silly!

Don't panic about it, all will be fine!

Check your "messages" settings.

Turn iMessage on, it will ask you to enter your apple ID, this will activate iMessage.

Send as SMS - ON

Go to settings -> carrier -> (wait for the phone to find the networks - appx. 2 minutes) select the network your not on.

After about 3 mins set to automatic.

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