We advise you to send complaints directly to us at [email protected] If this does not result into a satisfactory solution, there is the possibility to fight the case for mediation at Stichting WebwinkelKeur.
From February 15th, 2016 it is possible for consumers in the EU to direct complaints through the ODR platform of the European Commision. This ODR platform can be found at http://ec.europa.eu/odr.
If your complaint isn't under consideration elsewhere you are free to claim your complaint at the above mentioned platform.