Looks like a new world of worcraft scam seems to be doing the rounds recently.

It has come to our attention that you are trying to sell your personal World of Warcraft account(s). As you may not be aware of, this conflicts with the EULA and Terms of Agreement. If this proves to be true, your account can and will be disabled. It will be ongoing for further investigation by Blizzard Entertainment's employees. If you wish to not get your account suspended you should immediately verify your account ownership.