You are recommended to apply for Netherlands visa 30 days before your planned trip. This is the maximum time required to proceed with all the documentation and travel requests.

A single entry Visa to Netherlands allows a visa holder to enter the Schengen countries only once and the visa expires as soon as the visa holder leaves the country

A two-entry or a multiple-entry Visa for Netherlands allows its holder to visit the country for two or several times during the validity of the visa.

Schengen visa is a short stay visa and is stamped on your passport by the relevant visa centre. With this visa you can stay in any Schengen country for up to 90 days in 180 days period. 

Yes, with your Netherlands visa you can other Schengen countries as well for up to 90 days.

Family members of EU citizens do need a visa to enter Schengen zone. However, they are benefitted with certain procedural facilitations to obtain the visa application procedure alleviated and faster.

Yes, with a valid reason and you may extend your Netherland Schengen visa. But you must explain the reason for the same with adequate documents to support your request.

The fees once submitted for visa consultation & urgent visa acquisition is non-refundable.

The reasons for the refusal of Online Netherlands Visa are as per the standard forum. However, you are free to re-apply if your application was refused earlier. However, this time you need to be more vigilant & ensure there are no mistakes before submitting the new application.