How do I terminate SageMaker Services

Hello.

I had unexpected billing due to some SageMaker instances still running (see screenshot).

I don't know how to terminate it. I have followed the documentation on how to find and terminate running instances. I've looked at my billing dashboard and found that there are still running processes associated with SageMaker.

I've deleted resources associated with the respective regions including endpoints / models / notebook instances / s3buckets / cloudwatch log groups / domains / users

I thought it would be safe to delete the domains and users, although that might have been a bad call on my part.

I would really like to STOP the SageMaker instances. What should I do. Please help.