Dish Network Taking money from disabled seniors account with out authorization. do not know Nationwide

I just discovered Dish taking $408 from my 83 year old dads checking account . Dad has been in a nursing home since October 2014. I tried to talk to Dish in August when he moved out of his house and was told that he had been signed up for the premium package. He only wanted to see the News and Gunsmoke.    Dish would not cancel at the time but did reduce the bill to $17.99 per month. I told them to send a box to ship back the dish unit.     They took $260 out of dads account last week and are trying to take an attitional $148 this week. I called and got the run around. I was told the $260 was to cancel the contract and the $148 was the cost of the equipment. When I asked questions about the account I was told the account could not be pulled up on the computer but that those were the charges.