Charged for a movie no one ordered in my home!

I called and asked for details about the 20.00 charge for a movie no one in my home ordered. I have been a customer for over 15 years and this is the 2nd time in the last year that a movie is being charged for something  I did not. I am furious that I can get no details on when this charge happened or if you can prove it was played yet you won’t take it off my bill. I am looking for alternative vendors.