2. If you haven't yet signed in with your Apple ID, do so by tapping "Use your Apple ID for iMessage." 3. Once signed in, find the section titled "You can receive iMessages to and reply from" and ...

it will show you which Apple ID your iMessage is using, so double check to make sure it's the right one. Below, it shows you all of the addresses you can use for this account. So if you have a ...