Xfinity Mobile won't issue return label, refund now denied

I need help from the Digital Care Team. I ordered an iPhone 17e online through Xfinity Mobile and started a return within two days of the order, well inside the 14-day window. Xfinity has now failed for over 20 days to give me a working return shipping label.

I've spent 10+ hours on the phone and 5+ hours in chat across about 20 different agents. Chats keep disconnecting. The one "Download shipping label" email I received had a link that fails with "server not found." I was sent to a store, where staff refused to help because the device was ordered online. Xfinity.com/returns only handles internet equipment, not mobile.

Now an agent says the device is "not eligible" because 14 days passed, even though the only reason it passed is that Xfinity couldn't produce a working label.

What I need:
1. A working prepaid return shipping label.
2. A full refund with no restocking or damage fee.
3. Cancellation of the associated line (I don't use the number).
4. Written confirmation.

I've already filed BBB and FCC complaints and have full documentation. Please DM me so I can provide account details privately.