I sell a virtual service online and have had a very hard time combating chargebacks. I don't ship anything and the user don't necessarily have to download anything. Because of this , whenever a chargeback comes thru, I can never prove that services were delivered to the client because it's nothing tangible. I've tried sending copies of emails sent back and forth between the client but paypal doesn't even consider those, same with our return policy. Can anyone give me an idea of what I can do to combat chargebacks with virtual products??