The date or venue changed
Your ticket stays valid for the event as changed. A new date or a new venue does not cancel it, and you don't need to do anything to keep it.
We email you when the start time or the venue changes, so check the address you bought with.
If the change doesn't work for you
When an event moves to a different day or a different venue, everybody who bought before the change can ask for a refund — even if the event said all sales are final, and even if the usual deadline has passed.
Open My account → Order history and use Request a refund. The order says how long you have: two weeks from the change, closing two days before the new date if that comes sooner.
The organizer approves or declines each of these, and you are told either way. A new time on the same day doesn't open this window — the normal refund policy still applies.
Or pass it on
You can send the ticket to somebody who can make the new date. It's free and doesn't need the organizer's say-so: it's theirs once they accept it. Once you've sent it, though, that order can't be refunded.