Isn't the shipper responsible for ensuring delivery? Meaning if it doesn't show up the shipper files the claims. Apple should have all the information including who signed and work with FedEx. I would also expect them after submitting the proper paperwork to send a replacement phone (I have high expectations of Apple because they usually do the right thing). 
OP: I assume you restored as new to un-JB to see if that returned functionality. Moot at this point but curious.
OP: I assume you restored as new to un-JB to see if that returned functionality. Moot at this point but curious.