Good afternoon. I booked a trip that starts from 18.00 tomorrow from Chiasso to go to Dusseldorf using a DB train ticket. However, DB navigator warned me some trains were cancelled (without saying which) and emailed me saying they allow me to take any train, explicitly saying the ticket is valid from 00:00 of october 4th. Does it mean i can use this ticket freely to depart earlier tomorrow using SBB lines from chiasso too?