You can check on the status of a submission by just logging into your account here: https://manager.submittable.com/user/submissions
You can read more about what status' mean here: https://submittable.help/en/articles/904855-how-do-i-check-the-status-of-my-submissions
Please note, Submittable does not make submission decisions or determine an organization’s guidelines. For questions on these topics, you will need to contact the organization to which you’re submitting directly. There should be contact information on the organization's website.
You can track and manage your submission but also search opportunity guidelines on Submittable Discover: https://discover.submittable.com
You can also access our help center here: https://www.submittable.com/help/submitter/