Foutieve gegevens van derden veranderen

If you want to correct something, the steps that you need to take (signing up, understanding nodes and ways etc.) are described on the beginners' guide page. There are also some video tutorials that might be useful.

If you have a specific issue (e.g. "Lelystad Station is shown too far to the East") then you can ask that specific question here, with a link to the area concerned (using the "permalink" link in the bottom right-hand corner of the map).