I've had my iPhone 5 for a week, and out of the blue, some of my contacts can't receive my text messages (I can receive theirs just fine, and even call them successfully). They're on various non-apple phones, but i also have other contacts on non-apple phones who can receive my texts just fine. Most of them are also on verizon, as well. I tried resetting all settings (but not data), and rebooting, but nothing helps. I even checked my My Verizon account and the outgoing messages that are in question aren't even showing up in my Usage Details. It's like they never happen, yet they're in my sent messages on my iPhone. I tried calling *228 but it says I can't even do that. This is frustrating, as it's my first new phone since 2006, and I certainly didn't expect this to be happening.