akmac - 12:25 am on Aug 6, 2009 (gmt 0)

I've had two chargebacks from customers trying to scam me using their own cards, and have won both of those.

I've had a couple chargebacks that were legitimate (stolen info) that I did not contest because they just purchased gift certificates that were never used.

I get fraudulent orders weekly, but 99% of these can be detected and deleted in less than 10 minutes.

You may need to tighten up your approval process.