The US address is made up, and the name I used is "Pierre Hossler". The name is not my real name on my passport, but "Pierre" is my English name.
Then here is how the issue should be dealt with: CampBX should send the money back to Dwolla - they got it from there.
As your Dwolla account was cancelled, Dwolla should just send you a check payable to "Pierre Hossler". How you cash the check is your problem. After all you told Dwolla you're "Pierre Hossler", so Dwolla pays pack "Pierre Hossler" with a check.
This way both CampBX and Dwolla's name will be clear.
And you'll have a check.