Tax refund - French Customs Office at Basel SBB?

Finance, Taxes, Banking, Insurance and Retirement
1
Dear all,

Any one know the location and the opening hours of the French Customs Office at Bâle SNCF (i.e. Basel SBB) Station?

I will be traveling from Paris to Basel and want to have my VAT refund forms stampled by the French Customs Officers.

Thank you very much.

2
Usually they board the train before Basel.

If not you can post the form to the French Customs and they will stamp and return it.

3
Thanks! But will they stamp the forms if I just "post" to them? They have no idea if I am in France or elsewhere and my identity (if I just post to them they have no chance to check my passport I guess?)

I also heard that it is not very often that there are French Customs on board on the Paris -> Basel train...