Hello Lessenx
Firstly, welcome to the SBB Community and a Happy New Year.
We are a customer support forum run by volunteers answering your questions in our spare time, not the SBB Customer Service.
Well, welcome to Switzerland, then.
Yes, you can certainly give your student accommodation’s contact number, provided this number is reachable and someone will be around when the luggage is delivered. Please ask the owner first before giving their number.
Is it indeed necessary to send your luggage through the baggage transfer service? Are there so many bags?
However, I wondered, is it indeed necessary to use this service? Do you have so many bags? Keep in mind, there is no instant delivery, and you have to be OK to being without your luggage or the first days. You should pack in such a way that you have all the personal belongings, that you need immediately, in the bag, which you carry with you.
There are special ticket offers for people under 25. If you need a travel card, come back to us for further guidance.
Kind regards,
Roland