We tried doing that (I'm helping him with this problem). We clicked on "Add Email Address" then entered his @me.com address but with @icloud.com at the end instead, then clicked the big blue Save Changes button. But it was rejected, with this error message:
"Email address is already verified for another Apple ID."
I am having the same problem.
I click the verify now button in my account manager on Apple's website but, nothing happens. The page refreshes but, no message to say "we sent u an email" and i use this email address everyday but, not email arrives.
I am trying to verify another email account so friends can find me and call me on this email address.