SlingTV Refused to return money taken from my account without my authorization Atlanta Georgia

I responded to a 7 day trial received by mail flyer and on website.  I called slingtv several times asking information.

I  Informed them that I had previously tried for a few days previously and it appeared that their services had expanded.

 Noone indicated during 3 separate conversations that since I previusly tried the service that I was not entitled inspite of the fact that I mentioned I ad tried the service for a few days  before.

I put in my credit card info and my account was immediately charged.  I am retired 70 yrs of age on limited income.  THEY REFUSED TO RETURN MY MONEY.