Disputa

TMobile has intentionally and knowingly refused to cancel my account despite dozens of hours on phone calls, 3 visits to stores, unknown chat requests, social media posts, etc.  Despite all the mentioned avenues, TMobile claims I never cancelled my account, though they have the phone records proving I did (not to mention the returned equipment - meaning I cannot use the 5G internet).  

Now I cannot even receive a simple detail like a legal mailing address or email to file a dispute.  I'm sharing what I have finally discovered through hours of work:

Departamento legal

12920 S. East 38th St.

Bellevue WA 98006-1350