How to act in case of complaints
We recommend that you first report complaints to us by emailing [email protected]. If this does not lead to a solution, it is possible to register your dispute for mediation via Stichting WebwinkelKeur. From 15 February 2016, it will also be possible for consumers in the EU to register complaints via the ODR platform of the European Commission. This ODR platform can be found at http://ec.europa.eu/odr. If your complaint is not yet pending elsewhere, you are free to file your complaint via the European Union platform. "
You can download the model withdrawal form here