I just had this happen, too.
3 months ago, I found an $800-something charge on my card for some computer supplies in the town I just moved away from. I think because I had just lived there, my credit card company didn't catch it. Anyway, I freaked when I saw it, but my company was really good about it.
The last few days, though, somebody was making charges ranging from $8 to $35. They managed eight(!) charges in two days before my CC alerted me to a charge they denied for Match.com
. Anyway, I had it closed.
My last credit card company made me jump through hoops and roll over in submission when charges that were so obviously fraudulent showed up. I promptly shut down that card. I'll stick to a company that doesn't make such an effort to make me feel like a criminal
.