Hmmm probably you missed checking "credit card" as the actual payment method and the site gave you the default.
Usually sites accepting credit card payments makes two transactions on our CC before accepting it as a payment: they charge one dollar and then refund it (this is to make sure the CC is "alive"). If you are able to check online your CC movements, you can check if the 1 dollar take-give was done. If not, probably you missed something on the site, imho.