According to § 5 TMG

Dr. rer. pol. Johannes Heisig
Engeldamm 22
10179 Berlin

Telephone: 01705557773
Email: joheisig[at]

Tax ID

Sales tax identification number according to § 27 a sales tax law: DEXXXXXXXX

Job title and professional regulations


Editorial responsibility

Johannes Heisig

Consumer dispute resolution/universal arbitration board

We are not willing or obliged to participate in dispute settlement procedures before a consumer arbitration board.