Adobe Digital Reader -- I can't deauthorize an old defunct email address (with a lost password) and this is blocking downloading or reading all new book purchases. Do you know how to deauthorize ore get rid of that old account?

Adobe Digital Reader -- I can't deauthorize an old defunct email address (with a lost password) and this is blocking downloading or reading all new book purchases.  Do you know how to deauthorize ore get rid of that old account?