US: If you are sending a check from the US, please mail it to this address, including the invoice number: Chaos Software Inc
80 Pine Street
Floor 24
New York, NY 10005
Non-US: If you are sending a check from outside the US, please mail it to this address, including the invoice number:
Enscape GmbH
An der RaumFabrik 33b
76227 Karlsruhe