I sent a SM and the response I received is:
"The Airline Statement Message for your Citi Prestige card is incorrect on your monthly billing statement. The message should display 2014, not 2015. This will be fixed with the January billing cycle.
The message states:
Congratulations you have made the most of your flight experience!
You have used your $250.00 Air Travel Credit for the year.
The credit will reset to $250.00 after your December 2015 billing cycle.
When it should state:
Congratulations you have made the most of your flight experience!
You have used your $250.00 Air Travel Credit for the year.
The credit will reset to $250.00 after your December 2014 billing cycle."