For some reason I am unable to do a bike reservation for trains crossing the Alps. For example EC67 from Bazel SBB to Milano. DB (also app) say that price is unknown. With Trenitalia it is not possible to reserve for a bike without a personal ticket.
Any experience in this? How to communicate with Trenitalia (I already did) that I do not need an additional personal ticket. Btw, does the 3,5 euro ticket one can buy with a Trenitalia ticket guarantee a place on the train for by bike?
Many thanks for your time!