http://www.dansdeals.com/go/ArrivalPlusCB/points can be used for the AF.
Statement credits: If you have the exact number of points or more required to wipe away a charge, you can wipe away the entire charge. If you have fewer than the exact number of points, you can only redeem in 2500 point/$25 increments.
Example: If you have an $87 charge, and 9000 points, you can wipe away the entire $87 charge. If, however, you only have 8000 points, you can only wipe away $75 worth of the $87 charge (2500 point/$25 increments x 3).