Send it to the email address that they told you to send your information to. 
Don't use the paid for email address.
They emailed me back already (SHOCKING!) and said that they have not received the documentation and that they are in fact still waiting. I wrote them back, told them the dates from the original email, copied the original email, attached the PDF and sent them a screenshot from my sent mail folder showing the original email that I sent to them 8 days ago.
This process is AGONIZING. I don't understand how this can be this hard. I know that I'm preaching to the choir here but JFC.