Report fraud

I received a call that said I could lower my Direct Tv bill by 50% Asked me to go to CVS  and purchase 3 EBAY gift cards and call them back. Two were for $200.00 and one was for $125. This was to pay seven months ahead and I would not get a bill for seven months plus they were going to add movie channels and an ATT gift card for $100.00. The next day they said that those cards were somehow no good and so I fell for it and did it twice more. Same results each time but different story. David was the man I talked too. I called EBAY to see if I could get some help from them. They texted me and i gave them the pin numbers, the first nine numbers. I have not heard back from them  as of today but that was just a day ago. What I want to know is how someone could put movie channels on my TV so quick and without my DirectTV pin number. I believe that this could be an inside job as their are to many questions unanswered. They should have the persons name that put the movie channels on and how they did it. DirectTV needs to look into this very thing. I have filed a complaint with the FTC and my local police department