Greetings. I recently purchased a used directv hd receiver (H20) online, but when I tried to install it, directv told me that it has to be deactivated before I can use it. They told me that they cannot deactivate it unless he calls them and tells them that he wants to deactivate it. Unfortunately I no longer have contact with this person so I cannot ask him to do this for me. Am I completely screwed? Is there anything I can do?