While I can understand the frustration, I would argue that professionalism does not have to work both ways. If your client acts unprofessionally, you should sti

While I can understand the frustration, I would argue that professionalism does not have to work both ways. If your client acts unprofessionally, you should still act professionally. Try conventional ways to reclame the what you are owed and if all else fails, take the site down - possibly with a small notice that says something like "Site offline until payment in full". What OP did is illegal in many countries in Europe and from what I understand probably in Germany as well. It doesn't matter if the statements are true, it's still defamation. http://www.gesetze-im-internet.de/englisch_stgb/englisch_stgb.html#p1669 http://www.gesetze-im-internet.de/englisch_stgb/englisch_stg...