Switching back and forth
Say I was on Sprint last year and earned all the bonus United Mileage Plus points, then switched to AT&T for all the Delta bonus Skymiles, would I be able to enroll again with Sprint and receive the bonus United Mileage Plus points all over? Essentially, can you switch back and forth every 6 months to maximize earning points on the same two airlines? I apologize if this issue has already been addressed, but couldnt find any answers anywhere. Thanks!