2 Iphone 16's never delivered - and its been 3 weeks since ordered

First, I have been an xfinity/Comcast cable customer for over 25 years.  I took the chance to try their mobile system and my wife and I got 2 new phones.  Everything worked great.  Then I ordered 2 Iphone 16's for my daughters on June 21st.  They were supposed to arrive via FedX on June 24th.  FedX then showed a shipping exception on June 26th, unable to deliver - Damaged package.  (note- After going to the local Xfinity store in Katy over a period of 5 trips, I begin to realize the FedX delivery has had numerous thefts but Xfinity continues to use them but let's park this point.)  The local team created a ticket, last 4 #'s, 5182.  After several attempts to get updates, I was told the back office team would have it resolved by July12th.  This did not happen.  When I went to the store again July 14th, I noticed on the Xfinity employee's screen this was placed at low priority!  I asked who could solve my problem and they gave me the customer service 800 #.  I made contact with the agent, 'Cole' who stated we would have our phones within 2 - 3 business days but only after the investigation with FedX is complete.  Also, we would get updates via email starting today.  Hasn't happened.  My problem is this has taken +3 weeks to get new phones, my daughters service is turning off on the 20th with another company and they will lose their cell number!    Why can't Xfinity issue me a refund and I order 2 new phones?  This occurred a few years ago with AT&T and that's exactly what they did.  However, it appears the 'bolt' on mobile service into cable Comcast/Xfinity corporation is not working very well.  Any help would greatly appreciated.  Frustrated!