Upon logging into the Character Copy page, and selecting my World of Warcraft account, I then receive an error stating:

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Q u o t e:
There are already the maximum number of wow accounts attached to this battle.net account. You will be unable to participate in the PTR.

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I'm not sure I understand this message, I have 1 World of Warcraft account.\

Edit: Before the Copy Character issue was resolved, I was able to access the Character Copy screen.
Update: The issue is still unresolved. A blue is looking into it. Have patience. :)
Notice: Clicking the links at the top of the page (I.E.: Intro, Download Client, Character Copy) All redirect to the same error. This is the link (<http://www.worldofwarcraft.com/charcopy/max-accounts-error.html&gt;)

We're looking into this right now. Out of curiosity, you wouldn't happen to be in the SC2 beta also would you?