Seeking Eccomerce Trust & Safety/Fraud Expert (How can I reduce chargebacks I'm getting?)

I'm seeking consultation from someone with an extensive background of eccomerce, paypal, amazon payments, with an expertise on eccomerce fraud and how to avoid being targeted by fraud as an eccomerce seller and how to keep chargebacks to a minimal level; while ensuring that my business isn't breaking any rules in the user agreement which would cause my account to be frozen. I am seeking to create a new business and to use PayPal and/or Amazon Payments but am seeking a one hour consultation via Skype or similar service.