Hi, a friend of mine who hates Credit cards now (after having to go through a bankruptcy) was kind enough to let me put him as an AU on my Saphire so I could get 5k points. I'm wondering if I can keep him as an AU, and in fact use his card, to help HIM to build up some credit score back up. My understanding is being an AU does get reported to credit bureaus. Anybody knows if that could help him in rebuilding credit?