ItzEddie is reasonably frustrated:

I think I am gonna have to wait around 24 hours before I can actually use my mastercard over the interwebs, damn activation time.

Credit card activation times vary significantly based on the type of card, card use, and other significant variables. However, remember that the hassle of activation is intended to help secure your card.

It may be annoying to wait for a credit card to verify, but it can be a safeguard against identity theft and computer error. Next time you’re stuck waiting, be glad you aren’t wasting that same time reporting errors or theft.