I had to cancel a credit card yesterday. I tried to buy something online and discovered that the website was a fraud. (It's actually the first time I've gotten burned like this, so I suppose I should consider myself lucky.) Now I have to wait for the bogus charge to be posted to my account so I can dispute it. The nice lady at the bank's support line could see the charge, but since it hadn't been "posted" yet, she couldn't do anything about it.