I had to cancel my credit card earlier today due to fraud, but when I came home I forgot about that and bought a couple $0.99 apps from the Mac App Store. After I bought them I realized what I did - yet they still successfully downloaded. I assume that Apple doesn't charge me for such small purchases individually but does it during a batch job maybe once a day? Anyway, what do I do here? I don't want to get in trouble or get my iTunes Account locked or anything - yet calling Apple Support didn't help, it just directed me to this website. Any advice?