Totally unexpected, no email or notification. My Freedom card got a $1k CLI from $1k to $2k. I logged in just now to check something and noticed my limit went up. I didn't ask for it, nor did I expect it since none of my cards (save for my first Cap1 card) have ever gotten auto CLI'd. I did pump a lot of money through it last quarter due to the 5% categories, which is probably what helped. Just a data point for everyone. Account has been open since the end of August 2013. PIF 99% of the time. It is still on 0% til December, so I take advantage when I can. Woo hoo!
i opened in 8/2013 also! twinsies! 500 dollar limit initially.
Congratulations!...Thanks For Sharing.
Congrats! on the surprise CLI!!! 
Congrats! Thanks for sharing.
Discover IT $17k / US Bank Ace (VSig) $13.5K / US Bank Cash+ (VSig) $13.5k