I keep receiving the error message "Email address is already verified for another Apple ID".
Since my upgrade to iOS7 I have lost the ability to use the email address that I used for iMessage on my iPad. I keep receiving the error message "Email address is already verified for another Apple ID." But, it was working prior to the upgrade! I haven't changed Apple ID's. I've always only had the one but now.... Frustrated that I can't get it to work.
Email address is already verified for another Apple ID!!! Ugh!!!
iPad (4th gen) Wi-Fi + Cellular (MM), iOS 7.0.4