If you cannot come to an alternative arrangement with the seller that you're both happy with, the seller should issue you with a full refund via PayPal if they cannot meet at the time and place they advertised when listing. If they do not issue you with a full refund, please raise an issue against this purchase in your PayPal account ASAP. They are our transaction partner and we arrange for the reversal of payments through them. Outline exactly what has happened and they will investigate the seller with a view to refunding you.
If you have any issues with the dispute, please contact our support team with your PayPal case ID and we will assist PayPal in the process so that this is resolved as quickly as possible.