So the parcel was signed for. So there most be a signed slip, right? Just looked at the swedish post web page and other forums when it comes to shipping. Concept : did you ship REK and with extra insurance say 2500euros insurance? Did you insure the parcel with a second part (parcel force) if you shipped with a second part insurance then they will pay you back everything. If you onely used the swedish REK plus extra insurance then its going to be hard, as i read that swedish post dosent pay back jewelry (watches go under that in sweden) money, lottery ticket and a few more things!
Back to the signd parcel, have the swedish post got back a copy of the signd delivery slip?