Citibank American Airlines Barclay transition a poorly thought out mess.
My Barclays American Airlines card is being moved to Citi because AA says so. Citi notified all of my online accounts that they should start using my new Citi account number before they actually gave me the whole number. Now Apple App store wants me to confirm the complete number, expiration and security code and I have none of these because Citi didn't send me my new card yet. Calling them was no help, as it seems that the representatives don't speak english well enough to understand that I'm now locked out of the App store until they send me the new card (no I can't just use the old number because when they Apple tries to submit a charge against it, Citi will just tell them to change it to their number again, and I will still be locked out).
I would never have intentionally done business directly with Citi, but AA didn't ask my opinion before they made the switch.
CIti planned this process to be convenient for themselves and didn't care about or consider the impact to customers at all.
If you've been negatively impacted by this transition, call 1800-950-5114 (citi customer service) and voice your displeasure...over and over again if you have the time.