How to Issue PayPal Refunds
Step-by-step instructions can be found in PayPal's Help Guides, see: All about refunds
If you need additional help issuing your PayPal refunds, here is PayPal's customer service contact information:
6:00 AM PT to 6:00 PM PT Monday through Sunday
1-888-221-1161 - United States
1-402-935-2050 - Outside the U.S.