The second time post was received by
post.nlpost.nl on Sunday at 19:09 which is not possible because Dutch post doesn’t work on Sundays.
Additionally, if you click on the link of the email that says your package will be sent in 1-2 days, you can see that the tracking is redirecting you to the international website of
post.nlpost.nl which is also weird: I live in Breda (the Netherlands) and send it to Tilburg which is also in the Netherlands and very close by.