Can anything help me learn the DropBox account used

I inherited a site from a person who wasn’t technical and didn’t know much about the site himself. I understand from reading about your plugin that no DropBox login info is stored in the plugin, but is there anything at all that can help me discover anything at all about the DropBox. We have no clue who created it, the username or name. Anything would be a lead.

At this point we can’t recover a backup and cannot clear out the DropBox to make room for new backups.

Thanks.