He ordered an extra credit card on his dad's account by guessing the right questions. My guess is his parents either have a lot of cards or are fairly well off. $30k isn't exactly starting limits for cards here. I have two and the highest limit on one is $2200. However, I've not requested any sort of increase, just let them give me the increases over time. Even if I did, I doubt I'd be near $30k, but I'd wager they'd not let me have something that's over my yearly income (I be 'poor').