This is a crazy customer... i hate this kind of customer too... You have to screenshot all the conversations between you and the buyer (to prove to paypal support this customer have tendency cheating on you) and all the email copies (i assume if you can save the email conversation in pdf format just for PayPal team easier to read), and all the agreement between you and the buyer before start the works for this task... and also all other kind of evidence which can prove you are right in this dispute case.... And also call PayPal support by phone (sometime call the PayPal team can have better result as you can explain the case to the PayPal support in call and probably the person can help you the case more helpful)... By calling the PayPal support meaning you can leave a record in PayPal system, so that they can understand the case details better... Explain to the paypal support person in friendly and ask for help from them. Sometime email to PayPal support team also do help, but i prefer call them... Then make sure you submit all evidence to the dispute case, and you can only wait for the dispute result... And remember next time if you write something at here BHW, please do not shout (do not use all upper case letter words)... Hope you win your case.