I have been getting my "luv button" soft increases every three/four months on all three Citi accounts. The first of this month I had the button appear and accepted the increase. Logged on last night and I had my first CLI without the button. I did spend a few hundred more this month and had not paid my bill yet.
This may be normal for some , but was a real surprise for me.
I have great apr with them (5.25) (not special), high limits and the pleasure of feeling they want to reward good credit practices. That is almost rare these days.