HELP WITH APPLE TV ON US

So I signed up for T-Mobile and after a day I decided it wasn't for me and I canceled my T-Mobile service. after talking with family and friends over the weekend I decided to join back with T-Mobile but my Apple TV was not working I contacted Apple yesterday and they said it shows I had Apple TV Plus for one day and canceled and I told her yes that is true but the next day I rejoined with T-Mobile and she said it is a T-Mobile issue. Tmobile is saying it's an Apple issue...idk