How to manually request remote instance to remove stuff?

Due to some misconfiguration I dropped the database directly in order to start fresh, however contents that were already pushed to other instances doesn’t disappear (say, I want to remove a user with a username that doesn’t appear in the new database).
Also I noticed that account suspension in my current instance doesn’t work on remote instances as well even with remote follows (they don’t remove the user nor the toots), despite deleting a single toot works without any problems.

So my question is: Is their an admin command which I can use to manually remove stuff on remote instances based on username and/or status ID (these are the only stuff I can get from remote instances, which of course not in my database anymore)? If not, how can I resolve the account suspension issue?