Illegal doble charges

For the past 6 months I’ve been trying to get a hold of someone that can do the right thing and refund me the almost 12 months that direct tv doble charged my account due to the fact that the employee who switched me from satellite to stream NEVER cancelled the satellite account, I have tried every single phone number, chat, etc, emails, incident number, etc etc etv and all they do is have you go in circles and no solution or answer