VISA ISSUES

I'm waiting for my work promise certificate. As it stands now, I'm supposed to be in Opole in just a matter of weeks and I still don't have my VISA. I'm waiting to get my certificate from Poland (it was sent at the end of August) and then I have to send that, my VISA application, and my passport to the consulate in NYC. From there, it's supposed to take ten business days for me to get my VISA back in the mail. I'm waiting until I (at least) have the certificate before attempting to book any flights as I'm nervous to have to leave and not have even my passport to get on the plane.