I have both the CitiAmex and Visa Sig Plat. I am flying AA after Pesach and I booked the tickets with another CC. I also didn't have the Citi CC's when I booked the tix. The T&C say that you need to have had the card and paid with the card for free luggage.
Do the give it by flashing the card? As if now I have my BA FFN on the rez, will it help if I change to an AA FFN?