So today i had to restore my iPhone because like the idiot that i am changed my passcode while i was on the phone with a friend, wasn't paying attention and forgot what my new passcode was. So after restoring it from my iCloud backup a friend of mine asked why i sent an iMessage from my email. I went into Settings<Messages and noticed iMessage was set to send and receive from my iCloud email. I tried selecting my phone number but it's greyed out. Doesn't even have a check mark next to it. I turned iMessage off and reset my phone but it didn't help. Same thing happened. I turned it off and then on and then it was stuck at "waiting for activation" for a very long time to no avail. Then i proceeded to restore my phone and set it as new and the same thing happened. It was either waiting for activation or it was set to send/receive through my iCloud. I restored my phone for a 2nd time and nothing. Even turned off iMessage and FaceTime and reset my network settings, turned off the phone, turned it on and the same thing happened! T-Mobile is my carrier. I called them up and was transferred to an apple technician and he couldn't help. He essentially told me to make an appointment with the Genius Bar. So i made an appointment for tomorrow but i was wondering if anyone else has experienced this in the past? Right now it says "activation unsuccessful" and my number is still greyed out.