Unfortunately, in the aftermath of Katrina, I do recall needing to do a chargeback for a pre-paid Starwood hotel reservation. Only the property could issue the refund, and of course, there was nobody at the property for weeks after the disaster.
As you should have.
It's puzzling to think that companies should be prepared for the unfathomable events. What if there was widespread internet loss or communication loss? Or a nuclear attack on US soil?