My friend said she left early cause every time it rains the signal would go out (I know lame) I told her to call them and they may send someone out and she said she did but they never would, she told me she was gonna cancel and I told her about the ETF and they would charge it to her card on file and she said it had expired but I think she canceled it once I told her.
Regardless of what her problems might be, this should not affect your referral discount, nor your credit in any way.
DirecTV will deal with her in getting the ETF and equipment back from her, and if she totally screws it up, that is her problem (and DirecTV's, although I would imagine the bad spot on her credit affects her a lot more than it will DirecTV).
So..... don't worry about it. Although might want to give her a lesson in how things affect your credit score. When buying a house in 2010, they discovered 1 late payment in 2005, and questioned it. I had simply forgotten, so no big deal in the end, but this kind of stuff (refusing to pay ETF, refusing to return equipment, etc, etc) can REALLY hurt you down the line.
Hope she doesn't plan on buying a car any time soon, because houses and cars..... are where they nail you for past credit problems more than anything.