This issue has been covered in a few threads about Campaign Managers recently. At the end of the day it is at the CM's discression who is accepted. Issues such as causing uncertainty can be construed as being cause to be removed.
I also feel like people are too quick to jump on a suspected alt, and then use any excuse to red-tag the accounts. Even if the OP did indeed have two accounts registered in this specific campaign no rule violations occurred. Merely having an alt is no reason to get red-tagged.
Very well said direwolf.
The resolution reached in this case looks fair. Although sending personal documents out to anyone here seems like something to be discouraged. You never know when they could be used to extort you or a plethora of other problems could result.