I sent out my EAD application to TSC using EMS, but find out it was not delivered this morning, the postal office left a note there----because the TSC address is a PO box, no one is staying there to accept the delivery. Will the agents in TSC pick up the EMS mails daily? I am so nervous right now that it will hugely delay my process. Hope anyone who had the same experience can give me sime hint here. Thanks!