When you create a return shipment, your default UPS account number appears on the Create a Return page. To change your account number, select another account, or to bill the original shipper or a third party, select the appropriate account in the Bill Shipping Charges section.
To use a different Account Number, select from the drop-down list. Select whether to bill your UPS Account Number or a third party. To add a UPS Account Number to your list, select Use Another UPS Shipper Account. When billing a third party, you must enter the third party's UPS Account Number and postal code.
Note: A payment card (for example a debit or credit card) cannot be accepted as a payment method for Return Services.