recently sold two items to a buyer. the items arrived but after a few weeks i received a message saying one ithem wasnt as described and wasnt working. We spoke on the phone and i offered a refund or asked for a few days to source another replacement. during that time he opened a return dispute on both items. the item he is disputing sold for $30 and the item he has no problems with and is happily using sold for $400. My paypal is now -$430. rang paypal with no answer and they transfered me to ebay but after 90 mins with no answer i gave up. what do i do now