Hello.
I am planning to travel by tgv from Zurich HB to Paris.
I am having trouble finding out where I can get the customs stamp for duty free items purchased in Switzerland.
I read on one website that there is a customs office at the Basel station and they might be able to stamp it for me, but it says that sometimes there is no one at the counter and it is up to luck.
I know that I am about to get a duty free document issued by the store of purchase for 300 CHF or more. After that, I would like to know if there is a place outside of the airport in Switzerland where I can go through customs.