Double up? Citibank’s American AAdvantage Visa comes with a connected Amex

The Citibank envelope that was in the mailbox when I returned home today contained two new American Airlines AAdvantage linked cards. But, in a first for me, I received both a replacement Visa and a new American Express. Huh?

When I signed up for the card, it was just a Visa. How did I now get two different cards?

The enclosure explained:

We have enhanced your Citi/AAdvantage credit card account. You now have two Citi/AAdvantage cards, including a Citi/AAdvantage American Express card, to access your existing account and credit line. These two new cards which are enclosed and carry no additional fee replace the Citantageantage carare cuare currently carrying, and provide you with more places to earn American Airlines AAdvantage miles.

Perhaps theres precedent for this, but Ive... [via Upgrade Travel Better]