Sweater has been stuck in Breda NL for 2 weeks now - sent with VintedGo, is this normal or am I justified in being worried?

The seller sent it quickly; it moved from France to NL in one or two days, but now it has been stuck in Breda for two weeks without any movement. Am I right to be worried? The estimated time of delivery is December 31. This is VintedGo. Anyone with any experience using them?