Changes, refunds and rebooking
What osmos can and can't do once a booking exists.
Ask osmos to check the fare rules for any booking in Wallet. Where the supplier allows changes or refunds through their system, osmos can request them; where they don't, it tells you what to do and with whom.
When an airline or operator changes a schedule, osmos updates the ticket in Wallet. When a booking is rebooked on the same reference, the new ticket replaces the old one rather than sitting next to it.
Refund timing is the supplier's. osmos can confirm a refund was requested and accepted; it can't speed up the money.