Did you get a warning about your data being /dev/nulled with an admonition to download whatever you wanted to keep before unsubscribing? If you did, well... should'a heeded that warning to make backups, shouldn't you? If you did not get a warning I'd add that it would have been more customer-friendly for Anthropic to warn you about your data disappearing after unsubscription but I still think that you should have made sure you downloaded whatever data you wanted to keep around before `throwing the key in the mailbox'. Don't ever trust third parties to care for your data like you care for it, make sure to keep it somewhere you are sure you can get at no matter what.