Hi
We left switzerland in 2016 and have been asked to produce the reregistration documents (for pension withdrawal), but cannot find it. We did it no question.

Where can I get a copy of this document from?
Many thanks, James

Maybe it is meant that you have to show that you are now registered in another country and no longer in Switzerland?

They will need proof of officially leaving CH & confirmation of where they are living now to see if there is a social agreement in place & any restrictions involved.

They need proof I left the country so i can withdraw my pension. Do you know how I get copy of this document? many thanks!

Contact the place where you got it & ask for a copy, I suspect you will be charged for this service.