Customer service unable to unlock paid off iPhone 14 Pro Max

My 14 pro max has been a nightmare since the day I received it from Xfinity. They were unable to activate eSIM/IMEI 1 at the time so they proceeded to activate eSIM/IMEI 2 on my main line. The phone continued to show as inactive even though it was registered to a line and receiving service.

~9 months later, I fully paid off my phone because I needed it unlocked for some lengthy international travel. I waited the 48 hours for the "automatic unlock" to occur but it didn't. When I reached out to customer service they said there was an error with the unlock because of the failure to activate. They proceeded with a new activation and got my main line receiving service on eSIM/IMEI 1 but the line in Xfinity's website still shows eSIM/IMEI 2. After doing so, the device popped back up on my account as "pending activation" and now states I have 23 payments remaining. A different rep I spoke to assured me I will not be charged for that device (a claim I have very little confidence in) and they would re-submit the unlock request. I've passed the stated timeframe in which I would've received a code and have not, leading me to believe the unlock process has failed again.

How do I go about getting the 14 pro max I've fully paid for unlocked? It seems like support is unable to accomplish this. I cannot continue to submit requests and wait 48 hours just to hear nothing back and learn later that it failed once again. If this continues much longer I'm going to port all of my lines out of Xfinity even if a different carrier comes at a higher rate. Is there anyone I can speak with who can process the unlock and provide me the code directly while on the phone/chat? I'm beyond frustrated at this point.