PostNL is the Dutch postal service. Is there an addon available for this shipping method? (Commercially or otherwise)
contact member FLOW, he may be able to help
Not that I know off! I’m Dutch but my shop is in Germany so I’m using DHL 
Anyway, unless you want real-time rates, you can just enter the shipping costs and postal method yourself.
Hello P-Pharma!
We have an experience in developing different shipping methods and would be glad to help you. Please contact us to get a free quote.
Best regards, Alt-team