You are unable to settle your affairs at HafenCity University yourself, because you are abroad? Then you can authorize someone else instead. This person will hence be authorized to represent you in dealing with bureaucratic formalities, such as enrollment matters, signing applications, etc. at the HafenCity University.

Please submit a copy of the residence registration certificate (front and back page) of all persons named in the authorization.

You can use the power of attorneyorwrite an informal letter.