Refund at canceled concerts is handled via the current ticket dealer. Contact information for this can be found on the booking confirmation.
You will receive detailed information via email about the various routines that apply to you and the current event.
In the event of a canceled concert, the ticket price is what is refunded. The service fee is not refundable in any case. Any ancillary costs that the customer has chosen to buy in connection with the event, such as a hotel, travel and rental car, will not be reimbursed.
Contact your ticket agent directly, for example Ticketmaster or AXS if you have questions about redemption.