Can't get return label for iPhone 17

I purchased an iphone17 through Xfinity online for my daughter for Christmas however she wants to keep her old phone.  The phone has never been opened or activated and sealed in box.  Called Xfinity and spoke to a robot for an hour and a half and GOT ABSOLUTELY NOWHERE.... the robot wanted me to open iPhone and activate it and deactivate the one she wants to keep only to then deactivate and reactivate again which made ZERO sense.  Went to Xfinity store that had 5 workers helping 1 person.... waited 45 minutes to be told that since it was over 14 days since purchase (19 days) that I would have to take the phone to corporate store to return because they could return if less than 30 days since purchase.... drove 30 minutes to corporate store only to be told that since I purchased online through Xfinity they could not return and I would have to call to generate a return label.... called once again to again speak to a robot for 1 hour.... robot stated that a return label would be generated and emailed to me within 2 hours.... 24 hours later no email and no return label.... how do I speak to a LIVE HUMAN MANAGER to get this resolved???????