Xfinity states phone has left their fulfillment center and shipper has recieved the package, Fedex claims they have recieved nothing.

So I ordered the iPhone 15 pro over a week ago and received the tracking information along with a notification that my order has shipped out to my home. I figured this is normal since my previous orders have been very quick to arrive so I think nothing of it. All my phone deliveries have required a signature in the past so to be sure I'm there when FedEx arrives, I monitor the tracking info like a normal person would do. Day 1 tracking information says "label created" which I expected, day 2 and 3 go by with no change in status so I call in to xfinity to see if my device has actually been shipped or if there was a mistake and I'm on back order. They ensured me that the phone has already left their fulfillment center and is on the way too me. I gave xfinity the benefit of doubt and assumed it was just a delay in shipping. Another few days past and still no update on the Fedex tracking, shipping label created is where it's still currently at. I contacted xfinity mobile's hotline for the 4th time to be told it's still being shipped and I should contact Fedex to see what's going on. I contact Fedex and was told they still haven't received the package. Multiple agents told me the phone was given to FedEx already but they claim to have received nothing. Not sure who's lying to me but this back and forth isn't something I should be doing as a customer. I would be less agitated if xfinity would have said my item was on back order than have me keep asking about updates then suggest I contact Fedex myself. Xfinity agents keep telling me the device has shipped so I'm hoping my trust in them remains after this transaction.