I just noticed something odd. On my last several uses of coupons to upgrade from Acela Business to Acela First, the posted points I received included no class bonus at all. I am not sure if the "right" answer is that I should receive a 25% bonus based on the fare I bought or a 50% bonus based on the fare I traveled. But surely it shouldn't revert to a 0% bonus just because I used a coupon, right? Anyone else seen this?