I always call companies I’ve given my resume or applied to a few days after submitting my application/resume to be sure they’ve received it and check on the status of the position. If I were you, I’d call them and ask them if the position was still open and make sure they have your application. Sometimes, by calling in and having them check that your application is there, it helps your name stick out in their mind when they start calling for interviews. You can also ask if they have a timeline in mind for filling the position.