Hello Thaureumpa97
Welcome to the SBB Community. We are a customer support forum run by volunteering travel experts, we are not the SBB customer service.
Did you make a complaint?
There is no full refund (as the transportation contract was fulfilled) but you are entitled to a compensation. You must fill in the complaint form for this, provided you have purchased the ticket with SBB:
https://www.sbb.ch/en/help-and-contact/customer-service/praise-comments/reklamation.html
As we are all volunteers, giving advices in our spare time, hello and thank you is always appreciated.
Kind regards,
Roland