I have the same problem. Tried verifying from link but nothing happens. At one point got message that I needed to fill out a form to support. Did this. Don't know how long to wait for reply. Most times most sites send confirmation of receipt. But nothing in more than 10 minutes.
The last thing I wanted to do was to create a new account. There are too many ways things can become confused. Was forced to when bought my iPhone 4S. Result to this point is learning there is another way changing account names is the wrong thing to do.
By the way, I have read in several places that iCloud is STILL in beta. Can't believe that Apple would release a beta product.
I know some in this thread have found success. If you discovered a "trick", please share it.
Please advise,
ehw