DOORS Next change set discarded accidentally

Is there any way to retrieve the change set that got discarded by mistake? Can we connect to the database (back up taken before discarding the change set) and get the data from that change set? Or any API that shows the data from discarded change set?
At least can we find out who discarded the change set?
Any input will help as we had too many undelivered changes overe there.
Thank You in Advance.
One answer

Sounds like a question for the Support Desk but this old post may help -> https://jazz.net/forum/questions/180206/can-you-get-back-a-discarded-change-set