Originally Posted by emyhost
Whenever I encounter such situation, I will provide all the details to paypal according to their requirement. Meanwhile, I will try to contact the customer to clarify the issue with them, if they are not satisfy with our service and found they are right, normally I will request them to cancel the charge back and will refund it to them accordingly, or else, what we can do it just provide the necessary info/documents to paypal and let paypal to judge accordingly.
The best one can do is alwas to just abide by Paypals demands thats all one can really do. Many times you will actually lose the case even if you provide evidence as long as paypal is sure that the account that paid you was compromised.