Seems Citibank never wanted me to earn these 1000 PremierMiles so I never got this email. Anyhow, I requested a reader to forward me an email that Citibank has sent out to select group of their PremierMiles customers, who have recently been issued the new chip & pin credit cards.
To avail this offer, you first need to look up your mailbox to see if you have received an email from email@example.com regarding this promotion. Only if you heard from Citi would you be eligible for the promotion.
You need to use your new Chip+Pin Citibank Premiermiles CC with a physical swipe machine (i.e., not over the internet or a phone system) before August 31, 2013 and authenticate using a PIN code to be able to receive these 1000 PremierMiles. The miles will be credited within a month of the promotion closing.
You can check out the details terms & conditions here [PDF].
Also remember to register for the Accelerated miles promotion while you are up to it.