We purchased 4 tickets to a concert scheduled for ...

We purchased 4 tickets to a concert scheduled for July 2020 in the amount of $824.00, and it was of course canceled because of COVID-19. Apparently the concert will be rescheduled for next summer 2021, with no date given. I have made countless attempts through emails and phone calls to have my money refunded. No one answers the phone or emails. What terrible customer service!! I expected so much more from Segerstrom, we have been patrons for many years but will not be returning. They have my money!! Shameful