My spouse   s EAD/AP combo card expires in May 2021 and he currently works (AOS applicant). We were informed by his company HR to be sure that he applies for renewal 180 days in advance as USCIS  taking a very long time to process renewals and he risks not being able to work.   
       
    We sent the documents for both EAD and AP renewal via USPS certified mail, (return receipt requested) to the USCIS lockbox on December 11th. They were supposed to be delivered three days later but never arrived, and have been perpetually  showing as    in transit    with no additional scans after departing a regional post office.   
       
    I requested USPS conduct an investigation and they responded with no additional information and they do not know where our package is at the moment.  
     
    I   m worried if we send another, the post office may then deliver our original package and  USCIS will have two  applications and get confused. That said, we do not want to lose time for processing the combo card renewal.  
     
    On top of that, we included the    tear-off portion    that came with the combo card for the renewal application, and we do not have another (except a copy). 
       
    Should we send  another application or continue to wait?