Originally Posted by
agp423
Do I need to register my card with an airline, or can I just use my card to pay let's say $25 checked bagged fee with Delta, and then Amex locks Delta in as my airline of choice for $175 reimbursement for the rest of the year?
Call American Express customer service and tell the representative you need to choose the airline for fee reimbursement. You can't do it after the fact.