How to see status of claim

FedEx lost my Xfinity phone delivery - they tried to retroactively mark it as being delivered like 10 days ago (at exactly noon signed for by a random name, I don’t think so!) but on the phone they said it would be marked as lost and Xfinity would need to file a claim. 

called Xfinity and rep said they created a case

[Edit: Personal Identifiable Information] and would file a police report. I haven’t gotten any confirmation that any of this happened and I can’t find any evidence of this claim existing online. How do I find out what’s happening? I don’t want charged for a phone I don’t have but I would also like to have a phone so….?