During the payment process I am being asked for additional personal information.
Many banks are now using the "Verified by Visa" and "MasterCard SecureCode" systems. These are designed to provide additional security for online payments. During the payment process you will be taken to a page on your bank's web site where you will be asked for additional information to identify yourself. Having provided this you will be returned to the normal payment process on Preloved.
You can find out more information about Verified by Visa at the link below.