Scan the QR code (click the  button on mobile devices) above, download Flash Express APP and login your  account
          
 
  
          Click【Apply for Invoice】 in 【My shipments】.
          
 
  
          Select the shipment for apply an invoice
          
 
  
          In receipt details Please fill , then press the button to confirm information. We will issue a receipt to your email within 1 business day.
          
 