I am a US-based researcher and was offered a position as a postdoctoral researcher at a Swedish institute. The offer came in December, and I have negotiated some terms, which the school accepted. All of this happened via email and very quick. As the school accepted the various terms exactly as I wanted, I decided to accept the offer and wrote back saying that I will be joining the team.
Now, this is where the issue comes in. I know I need to file some paper work to proceed, which exact steps I am not yet sure about. I have sent two emails inquiring about the issue to the professor in charge, but I have not gotten any response back.
I find it strange that my emails are being ignored and this is making me worried. Some acquaintances over in Stockholm has suggested that because many people take time off during the holidays, things can slow down considerably in December-January (I haven't been there and I have no idea how things work there), but it is almost end of January and I do need to get the paper work done soon to be able to relocate on time. What should I do?