For questions about opencaching and theme Geocaching our Open Caching Wiki a good place to read a bit.
There is a nice introduction video made which explains in detail what Opencaching.nl and Geocaching is about. Please take a look here.
If no answer can be found on a certain question you may also look on our forum. Maybe that question has been asked here.
harrieklomp (Harrie): Management of the Opencaching site, takes care of the Wikipage, approves new caches region Limburg Belgium, etc. etc.
Odlaniger (Reggy): Approves your new caches region Gelderland Netherlands.
Raven (Roelof): Approves your new caches region Zeeland Netherlands.
zjefke (Jos): Approves your new caches region Prov. Antwerpen Belgium.
For this we have a subforum on forum.opencaching.nl. Here you find more information for most questions, and if you are interested join our Opencaching-team.
If the above options does not provide the answer to your question, you also can write directly a mail to opencaching.nl via firstname.lastname@example.org
Because the volunteers at opencaching.nl do not always have time to answer your questions. So do not be impatient if there is not an immediate answer to a question.