Your PayPal account's primary currency is different than the currency eBay uses to bill your seller fees. If your PayPal account does not contain funds in eBay's billing currency when your bill is paid, necessary funds will be converted to match eBay's billing currency.
Use PayPal's automatic billing service to automatically pay your eBay charges related to your selling and buyer reimbursements . You can review or cancel this billing agreement, or modify your funding sources, at any time. Simply log in to your PayPal account, go to your Profile and click Pay List.