t-mobile Home Internet - Location Issue

That's not always true, I live in the state of Montana and I'm picking up stuff from Sacramento California, I have Roku TV and I went and reset the ZIP code and all that on my TV nothing happened I still get from California. I called these people up three times they said since my IP address is out of California there's nothing you can do they suggest I go buy a new router to work around it , this is total , I will not recommend T-Mobile's internet service ever they're they take their internet box