If they charged your credit card for something that you didn’t receive then protest that charge to Visa (or Mastercharge). I wouldn’t let them get away with it.
Beware when signing up online with active.com of offers of “free” stuff – read the fine print, bearing in mind that they have your credit card number.
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Sheriff: You have a lot of experience with bounty hunters, do you?
Mattie Ross: That is a silly question. I am here to settle my father’s affairs.
Sheriff: All alone?
Mattie Ross: I am the person for it. Mama was never any good at sums and she could hardly spell “CAT”.
--from the movie True Grit (2010)