hello, I'm seeking info on a possible booking through BA and I've never booked/flew BA. I am AA Platinum. I created a BA account and looking to book and pay for WTP seats, and get points using my AA loyalty program. But I also want to put in a request for upgrade to CW(or Club Suites). Can I transfer points from one of my credit cards to my new BA account to pay for the upgrade using Avios points although I'm getting credit on AA loyalty?
Thank you!