Complaint - Mobile DPP nothing but issues. Getting ready to drop phones and home service!

I switched to xfinity at my home after using verizon with no issues for over 4 years (home and mobile) I have 3 cell phones. I have been to the store twice and on the phone more than 6 times! I was told to bring over my first phone and then it would "unlock" my ability to have a DPP because I moved. Clearly I was scammed by the support manager that was "helping" me. I was told I would get a call within 48hrs, no call.

Please help me figure this out! I have lost my promotional trade in value (830$) because they had me bring the device over first to "fix" the issues with your system. I was promised a resolution and credit for the trade in difference! HELP PLEASE!