Are you sure there is no backup? Try this query:
FROM msdb.dbo.backupset a
INNER JOIN msdb.dbo.backupmediafamily b
ON a.media_set_id = b.media_set_id
ORDER BY a.backup_start_date DESCIf you find records here for the database in question a backup has been made at some point. If you find something at all, obtaining the file is also a challenge...
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