I think the web site hosting these "free" ads should be held accountable. I got ripped off a couple of years ago on the "free" samples of Dermatage by clicking "retry" half-a-dozen times when my credit card wouldn't go through.
I never even got the sample, just half-a-dozen charges to my account for shipping fees. I reported it to the bank as soon as I saw my account when checking my balance on-line. I think the site where the ads are posted should be made to remove these scam-ads from their sites.
MSN, your move.