Paypal is normally pretty reasonable about chargebacks and so on. Normall paypal chargebacks are through a dispute, and they give you like 60 days to resolve it on your own with the customer or prove that the customer received what they paid for. Here are a couple good places that will help lower fraud.


http://www.varilogix.com/ - Automated Callback on all orders.

http://www.pleskbilling.com/order-verification/ - Works great, cross checks many factors on sign-up to help prevent fraud.