From my own experience with Interpersonal I can say this: While they will tell you that you should not call or email them asking about the state of your application this is what eventually is going to help you moving forward. I would advise to refrain from closing or opening applications because the initial date of your application counts after all.
I actually once had an application open where I came in just short of the required hour minimum. It was reviewed and then set to "close" so you actually are informed if you're not suitable for the position.
If your application is still open you're eligible to be invited. Chances are the people on top of the stack are just calling more often than you are. It's a stupid system but if you want to succeed you'll have to play along.