I wrote an e-mail to the Vulcanus office to ask if it would be possible to post a list with people who they do not received papers from, but since they mentioned that they will not send the confirmation of receipt and there also might be problem with sharing personal information, I don´t really think we will get any answer.
I guess we have to trust the office and hope for our dreams to come true

EDIT: I got response but the e-mail was empty

So i have no idea what that means, either they made a mistake responding or they can´t provide the information.
I dont have the courage to send another e-mail

EDIT2: I got another e-mail that stated they have my documents but nothing else. So I think it´s safe to assume that if you sent them your documents they got them, but if you want to be 100% sure I guess you need to contact them.
As for what happens if you do not submit your papers - I guess they just ignore your application.