It's a little more complicated than you might think. The very scenario your talking about has literally bit me more than once. Not only are they doing credit checks, but background checks are also included. They know who is who in a household & who is related to who & how, even if the address is different. Dish is doing the same thing. I have personally seen many emails from Directv saying do not install for so & so, that the account has been flagged as fraudulent. The best bet is just to switch providers and do that every 2 to 3 yrs. No implications or complications by doing that. Besides you can at least ride out the new customer promos every other year.