I have a 4s and I just saw this message for the first time ever today. I got a girl's phone number and I tried texting her tonight, but less than a second later I got a separate text with an error message saying the following: The thing is the number was 10 digits as entered. I read somewhere to delete her contact info and then re-enter it, but upon re-sending the text the same error text was sent to me. Any advice? My dating life is at stake!