Hello,
I believe it would be best to contact PMI and ask them about the status of your application. Normally when you apply, you receive a confirmation email with the details of your application and when you would hear back from PMI with the status of your application. If you haven't received anything from PMI past their timeline commitment, I would suggest you contact them directly. They are really good at responding to these sort of queries. Wish you all the best in studying for the exam and getting your PMP designation. This forum is a great resource for your study needs, so I hope to see you here often.
Regards,