Apple Watch line assigned to wrong IMEI – need device swap, no resolution after store visit and calls

I replaced my Apple Watch with a new Apple Watch SE 3 (GPS + Cellular). My billing shows the watch line is active, but it says the SIM was switched to my OLD watch's IMEI instead of the new one. Because of that, the new watch shows "No SIM" and can't download an eSIM.

What I've already done:

• Unpaired the old watch and re-ran Set Up Cellular on the new watch

• Visited an Xfinity store three times; was sent to the in-store virtual assistant twice and then told to go to Apple

• Called Mobile Support today; after 1.5 hours, the call was disconnected on your end

What I need: a device swap on the watch line to the new watch and a fresh eSIM profile pushed to it.

• Old watch IMEI (currently on the line): available by DM

• New watch IMEI: available by DM

• New watch EID: available by DM

I'd also like a credit for the time I've been billed for a line I can't use. Please DM me to verify my account.