no shipping label in box for trade in

I received my box to send in my old 27" for a trade-in/recycling. I am in the process of trying to erase the disk. When I looked inside at the directions and packing material, it appears simple enough. However, I appear to be missing the paper sleeve to put the power cord and accessories inside and the return shipping label. I could not find a phone number for support to have a new one sent. Our retail stores are still closed due to COVID-19. Is it possible to have replacement ones sent? Thanks!