Here dutch customs doesn't even send you links for this stuff over SMS due to all the spam. They tell you to look up the package tracking number on the PostNL

Here dutch customs doesn't even send you links for this stuff over SMS due to all the spam. They tell you to look up the package tracking number on the PostNL (the national universal delivery company) where you can pay for it. All you get over SMS is a heads-up to check and the ID to enter (you need to combine it with your zipcode).