Many airlines are now waiving change fees which has reduced the risk of booking tickets during these uncertain times. Does anyone know if they also will credit back purchased seat upgrades? I recently rebooked tickets on delta to move our trip from November to December. No problem applying the ticket credit but there was no credit for the seat upgrades I stupidly purchased and no mention on the Delta web site on this topic. Any advice? Other than "Don't buy seat upgrades until you know for sure".

Thanks