CityTicketsOnline.org review: Full refund

I purchased 2 tickets online for Eric Johnson concert to be seen 3/19/2020 at Minglewood Hall in Memphis, Tn. The concert was "postponed" do to Covid. It is now over 2 years later and there is still no makeup date for this event. Refund requests from CITYTICKETSONLINE have been denied because they still claim the event will be rescheduled. I am seeking a refund due to this significant passage of time.