Today 12/1 I looked at your Royal Copenhagen vase. It says 3 days handling time and economy shipping. It shows estimated delivery date of 12/5 to 12/18. That is not a month.
HOWEVER With a 3 day handling time 12/5 is just simply out of the question. And economy shipping which is typically meant to mean first class mail or, worse, smart post, the 18th is more probable but even there I wouldn't bet on it if you use smart post.
Perhaps if you could speed up your handling time and use Priority Mail you could avoid the problem.
"Laissez-faire capitalism (AKA The Great Material Continuum) is the only social system based on the recognition of individual rights and, therefore, the only system that bans force from social relationships." ~ Ayn Rand
