PayPal Refunded Returns covers your purchases with the exception of the following:
Follow the seller’s return instructions for your purchase. Remember to keep a copy of your return shipping receipt.
Log into your PayPal account, select the purchase you returned and click on “Request a refund on return shipping”. Submit the return shipping request form, along with proof of your return within 30 days.
You’ll see a refund of up to US$20 in your PayPal balance within 10 business days for all approved claims.