Not really, as a credit card "limit" is pure fiction and the CC companies will gleefully let you overdraw on your VISA or MC (in the name of 'friendly customer service') while charging you for it.
I figured this out when a $500 "online-only" card got compromised and some yahoos in BC were charging ski clothes to it (probably employees), and at well over $1,000 in total. I asked how this could happen and was given the info that a credit limit is a "soft limit" and does not stop additional charges from going through.
I think it used to be a hard limit, back when Canada was Canada, but certainly not in today's environment where 60% of the population is one paycheck away from being homeless.