Recovering account

I was using the Scrivener free trial when my Mac got wiped. I can’t now find a way to get back to my account and quite worried as I was working on a manuscript. Has anyone encountered this before and is there a way to recover your work?

There is no Scrivener “cloud.” The only copies of your work are those you created.

Do you have a Time Machine volume? An account with Dropbox, iCloud, or a similar service? That would be the place to look for backup copies.