seems a lot of these chargebacks are because the customer is using a stolen credit card to purchase.
I found that some countries are worse than other in that matter.
for example, from my experience, most of the chargebacks are from customers residing in the philippines or Indonesia.
there is probably a list of countries that potential customers residing in them are more likely to chargebacks.
I wan't to black list those countries on my sites, I just didn't manage to find such a list.... I guess I didn't google the right keyword...
what should I google to find such a black list of countries? does anybody happen to have a reliable link to such a list ?