16 Digit Serial Key To Mount And Blade Why Is Every Website, Including EBay Asking Me About PayPal Information ?

Why is every website, including EBay asking me about PayPal information ? - 16 digit serial key to mount and blade

I try to cancel the Gift Card Visa debit offline order of things, $ 1.95 in some ways my PayPal card now, then before an order to use when I saw PayPal.

Has anyone here knows a website where you can buy a variety of things, simply by the number of 16 digits of the card number and the serial number? (With a Vanilla Visa Gift Card)