Very disappointed with Xfinity Mobile Support - Dual SIM issue

To start... I have been a loyal Xfinity/Comcast customer for at least 15 years and have Diamond status in your program.  I have cable, internet, phone and security system.  I recently decided to transfer my family's mobile phones (6 lines with new phones + service for an iPad) to Xfinity mobile to take advantage of the iPhone 16 promotion and trade-in programs.  Mostly it was fine. But now I'm really regretting it.

I have an issue with my own phone as I have 2 lines activated on it - my personal phone (which was T-Mobile and is now Xfinity) and a 2nd eSIM with my business line (which is a Verizon business account).  During the sales and activation process I explained this to the agent (in store) several times and told her that the phone cannot be locked so I can activate that second SIM with the Verizon business line.  She repeatedly told me that Xfinity does not lock phones (but, honestly, I don't think she knew exactly what I was asking).  Well... of course it was locked and now I'm stuck with my beautiful new iPhone 16 with my personal line and my old iPhone 14 with my business line.  But, I have to wipe and send in my old 14 soon and then my business line will be going nowhere (which can't happen, obviously).

I had the exact same problem with T-Mobile 2 years ago when I traded up to the 14 (a promo and trade-in which technically locks the phone for 24 months when it is paid off).  I called their support and they said "no problem - you've been a customer for many years" and they unlocked it while I was on the call!  The whole thing took maybe 10 minutes and all was well.

I mean, I have 5 other locked phones on the account (not to mention all of the other Xfinity services) so it's not like I'm going anywhere just because they unlock one phone.

So, I contacted Xfinity support online and after 30-45 minutes in a chat with an agent, I just kept getting the standard line that it was locked due to the promotion and my only choice was to pay it off.  I asked for escalation for an exception and he supposedly did, but just kept repeating the same policies.  Finally he gave me the support phone number.

Called that number - 30 more minutes of explaining to the call center agent (who also had no clue and even told me that my phone can only have 1 number!), and repeatedly asking for escalation, he also just told me the policy over and over.  I asked to speak with a supervisor or manager and they refused to talk to me... instead they wanted to email me the policy!

I'm beyond frustrated with Xfinity now... to the point that I may consider shopping for other providers for all of my services - all over 1 simple small exception to a policy that is literally a push of a button (if T-Mobile can do it, so can Xfinity).  I just can't believe that they don't place enough value on a long term high-paying customer to at least give me the courtesy to talk to someone in leadership.

So... if any Xfinity employees read this and have such authority, please reach out before I am no longer a customer.